In my continued effort to lift the veil of secrecy behind slot machines, I present the following analysis of the IGT game Lucky Larry's Lobstermania. The information regarding the design of this game is taken from the academic paper PAR Sheets, probabilities, and slot machine play: Implications for problem and non-problem gambling by Kevin A. Harrigan and Mike Dixon, University of Waterloo, Waterloo, Ontario, Canada.
Lucky Larry's Lobstermania 3 Slot Machine For Sale, poker themed baby shower invitations, poker club peterborough ontario, riverside casino free birthday buffet. Players looking to play this game will have to set in motion the game’s five reels that come in an unconventional 3, 4, 5, 4, 3 row design. This slot has 720 ways to win. The IGT Lucky Larry’s Lobstermania 3 slots app and / or other similar slot machine games may be available to enjoy on your iPad, iPhone, Android, Windows device, PC or Mac. The IGT I-Plus Lucky Larry’s Lobstermania video slot game is a five reel, 25-line maximum bet game pay that features, Lucky Larry, the crusty New England speaking lobster. Two features of this video slot game come into play.
The authors of the paper obtained par sheets for the game through the Canadian Freedom of Information and Protection of Privacy Act. I applaud the government of Canada for this release. The purpose of this page is to further the analysis of Lobstermania beyond what was presented in the Harrigan and Dixon paper.
It should be noted there are other versions of Lobstermania besides this one. As far as I can tell they differ by small changes to the pay table and details of the bonus round.
Harrigan and Dixon give the symbol distribution for two Lobstermania par sheets, one for 85.0% and the other for 96.2%. Both are presented below. Notice how the 96.2% version has more high-paying symbols and that any given symbol is distributed more uniformly across the 5 reels. To illustrate that the distribution is more choppy in the 85.0% version, notice that the number of clams per reel on the 85.0% version is 10,8,3,4,7. On the 96.2%, the distribution is 6-6-5-6-6. However, the number of key symbols (wild, scatter and bonus) are the same in both games.
Symbol | Reel 1 | Reel 2 | Reel 3 | Reel 4 | Reel 5 |
---|---|---|---|---|---|
Wild | 2 | 2 | 1 | 4 | 2 |
Logo | 4 | 3 | 3 | 3 | 4 |
Buoy | 3 | 4 | 3 | 8 | 5 |
Boat | 4 | 3 | 4 | 3 | 4 |
Light House | 3 | 4 | 6 | 3 | 7 |
Tuna | 4 | 3 | 6 | 6 | 6 |
Clam | 10 | 8 | 3 | 4 | 7 |
Sea Gull | 3 | 9 | 4 | 10 | 5 |
Star Fish | 10 | 3 | 10 | 7 | 8 |
Bonus | 2 | 5 | 6 | 0 | 0 |
Scatter | 2 | 2 | 2 | 2 | 2 |
Total | 47 | 46 | 48 | 50 | 50 |
Symbol | Reel 1 | Reel 2 | Reel 3 | Reel 4 | Reel 5 |
---|---|---|---|---|---|
Wild | 2 | 2 | 1 | 4 | 2 |
Logo | 4 | 4 | 3 | 4 | 4 |
Buoy | 4 | 4 | 5 | 4 | 5 |
Boat | 6 | 4 | 4 | 4 | 4 |
Light House | 5 | 4 | 6 | 6 | 7 |
Tuna | 6 | 4 | 5 | 6 | 7 |
Clam | 6 | 6 | 5 | 6 | 6 |
Sea Gull | 5 | 6 | 5 | 6 | 6 |
Star Fish | 5 | 5 | 6 | 8 | 7 |
Bonus | 2 | 5 | 6 | 0 | 0 |
Scatter | 2 | 2 | 2 | 2 | 2 |
Total | 47 | 46 | 48 | 50 | 50 |
Harrigan and Dixon do not indicate the exact reel stripping. However, as long as the scatter symbols are not so close on the same reel that they can appear at the same time, the symbol order does not matter for this game, as well as for most video slots. The following reel stripping is hypothetical, based on the 85.0% version.
Symbol | Reel 1 | Reel 2 | Reel 3 | Reel 4 | Reel 5 |
---|---|---|---|---|---|
1 | Tuna | Clam | Boat | Sea Gull | Clam |
2 | Star Fish | Buoy | Star Fish | Tuna | Wild |
3 | Clam | Light House | Clam | Buoy | Boat |
4 | Light House | Clam | Bonus | Sea Gull | Logo |
5 | Scatter | Buoy | Light House | Scatter | Buoy |
6 | Clam | Light House | Boat | Buoy | Star Fish |
7 | Star Fish | Bonus | Logo | Star Fish | Light House |
8 | Bonus | Sea Gull | Star Fish | Sea Gull | Tuna |
9 | Logo | Clam | Bonus | Tuna | Star Fish |
10 | Scatter | Boat | Light House | Wild | Light House |
11 | Buoy | Sea Gull | Star Fish | Buoy | Sea Gull |
12 | Clam | Tuna | Bonus | Tuna | Wild |
13 | Star Fish | Boat | Tuna | Star Fish | Tuna |
14 | Buoy | Bonus | Star Fish | Logo | Buoy |
15 | Clam | Star Fish | Clam | Sea Gull | Boat |
16 | Star Fish | Sea Gull | Sea Gull | Tuna | Clam |
17 | Logo | Wild | Star Fish | Wild | Tuna |
18 | Light House | Bonus | Wild | Logo | Buoy |
19 | Clam | Sea Gull | Bonus | Light House | Star Fish |
20 | Wild | Light House | Light House | Buoy | Clam |
21 | Sea Gull | Logo | Sea Gull | Sea Gull | Scatter |
22 | Star Fish | Wild | Star Fish | Boat | Buoy |
23 | Wild | Buoy | Tuna | Clam | Star Fish |
24 | Bonus | Clam | Clam | Star Fish | Tuna |
25 | Clam | Bonus | Boat | Light House | Clam |
26 | Boat | Sea Gull | Tuna | Sea Gull | Buoy |
27 | Star Fish | Clam | Star Fish | Boat | Boat |
28 | Tuna | Scatter | Bonus | Clam | Light House |
29 | Clam | Logo | Tuna | Buoy | Tuna |
30 | Star Fish | Tuna | Light House | Sea Gull | Logo |
31 | Tuna | Sea Gull | Star Fish | Boat | Light House |
32 | Logo | Scatter | Scatter | Light House | Sea Gull |
33 | Clam | Star Fish | Light House | Star Fish | Clam |
34 | Star Fish | Clam | Logo | Tuna | Logo |
35 | Boat | Boat | Sea Gull | Sea Gull | Star Fish |
36 | Light House | Logo | Star Fish | Buoy | Boat |
37 | Clam | Sea Gull | Scatter | Star Fish | Light House |
38 | Star Fish | Clam | Buoy | Clam | Tuna |
39 | Boat | Bonus | Tuna | Buoy | Sea Gull |
40 | Tuna | Star Fish | Logo | Sea Gull | Star Fish |
41 | Buoy | Sea Gull | Bonus | Star Fish | Light House |
42 | Sea Gull | Buoy | Star Fish | Clam | Clam |
43 | Logo | Light House | Light House | Logo | Logo |
44 | Clam | Clam | Sea Gull | Wild | Sea Gull |
45 | Star Fish | Tuna | Buoy | Buoy | Star Fish |
46 | Boat | Sea Gull | Boat | Sea Gull | Clam |
47 | Sea Gull | Tuna | Star Fish | Sea Gull | |
48 | Buoy | Scatter | Light House | ||
49 | Tuna | Scatter | |||
50 | Wild | Star Fish |
The way the game would work would be to choose 5 random numbers, one for each reel, and map each random number to a position on the corresponding reel. For example, for reel 1 the game would draw a number from 1 to 47. For example, suppose this number were mapped to the symbol in the top row. If the random number for reel 1 were 37, then the symbols shown on reel 1 would be a Clam on top row, a Star Fish in the middle row, and a Boat on bottom row.
The next table shows the Lobstermania pay table. All wins must be left aligned. The wild symbol can substitute for any line-pay symbol.
Symbol | 5 in a row | 4 in a row | 3 in a row | 2 in a row |
---|---|---|---|---|
Wild | 10000 | 500 | 100 | 5 |
Logo | 1000 | 200 | 40 | 2 |
Buoy | 500 | 100 | 25 | |
Boat | 500 | 100 | 25 | |
Light House | 500 | 50 | 10 | |
Tuna | 250 | 50 | 10 | |
Clam | 200 | 30 | 5 | |
Sea Gull | 200 | 30 | 5 | |
Star Fish | 150 | 30 | 5 |
There are 47 × 46 × 48 × 50 × 50 = 259,440,000 possible outcomes in Lobstermania. The following table shows how many of these combinations result in each possible win. These figures are the result of a program with five nested loops that tallied the total for each win for each possible combination.
Symbol | 5 in a row | 4 in a row | 3 in a row | 2 in a row | Total |
---|---|---|---|---|---|
Wild | 32 | 704 | 7,300 | 212,000 | 220,036 |
Logo | 5,008 | 36,256 | 249,400 | 2,860,000 | 3,150,664 |
Buoy | 9,968 | 59,856 | 220,400 | 290,224 | |
Boat | 6,204 | 44,968 | 313,900 | 365,072 | |
Light House | 13,086 | 59,122 | 442,900 | 515,108 | |
Tuna | 16,672 | 86,520 | 412,000 | 515,192 | |
Clam | 34,416 | 156,128 | 974,400 | 1,164,944 | |
Sea Gull | 26,838 | 163,142 | 459,000 | 648,980 | |
Star Fish | 72,440 | 288,640 | 1,201,200 | 1,562,280 | |
Total | 184,664 | 895,336 | 4,280,500 | 3,072,000 | 8,432,500 |
The next table shows the probability of each possible win. This is the number of winning combinations for that win, shown in the table above, divided by the total number of combinations of 259,440,000. The total in the lower right cell reflects a hit frequency per line (probability of winning anything) of 3.25%.
Symbol | 5 in a row | 4 in a row | 3 in a row | 2 in a row | Total |
---|---|---|---|---|---|
Wild | 0.00000012 | 0.00000271 | 0.00002814 | 0.00081714 | 0.00084812 |
Logo | 0.00001930 | 0.00013975 | 0.00096130 | 0.01102374 | 0.01214409 |
Buoy | 0.00003842 | 0.00023071 | 0.00084952 | 0.00111866 | |
Boat | 0.00002391 | 0.00017333 | 0.00120991 | 0.00140715 | |
Light House | 0.00005044 | 0.00022788 | 0.00170714 | 0.00198546 | |
Tuna | 0.00006426 | 0.00033349 | 0.00158804 | 0.00198578 | |
Clam | 0.00013265 | 0.00060179 | 0.00375578 | 0.00449023 | |
Sea Gull | 0.00010345 | 0.00062882 | 0.00176920 | 0.00250146 | |
Star Fish | 0.00027922 | 0.00111255 | 0.00462997 | 0.00602174 | |
Total | 0.00071178 | 0.00345103 | 0.01649900 | 0.01184089 | 0.03250270 |
The next table shows the contribution to the return for each possible win. Each cell is the product of the probability, from the table above, and the pay table. The right cell shows a total return from line pays of 55.28%.
Symbol | 5 in a row | 4 in a row | 3 in a row | 2 in a row | Total |
---|---|---|---|---|---|
Wild | 0.00123343 | 0.00135677 | 0.00281375 | 0.00408572 | 0.00948967 |
Logo | 0.01930311 | 0.02794943 | 0.03845205 | 0.02204749 | 0.10775208 |
Buoy | 0.01921061 | 0.02307123 | 0.02123805 | 0.06351989 | |
Boat | 0.01195652 | 0.01733272 | 0.03024784 | 0.05953708 | |
Light House | 0.02521970 | 0.01139416 | 0.01707138 | 0.05368525 | |
Tuna | 0.01606537 | 0.01667438 | 0.01588036 | 0.04862010 | |
Clam | 0.02653099 | 0.01805365 | 0.01877891 | 0.06336355 | |
Sea Gull | 0.02068918 | 0.01886471 | 0.00884598 | 0.04839986 | |
Star Fish | 0.04188252 | 0.03337650 | 0.02314986 | 0.09840888 | |
Total | 0.18209143 | 0.16807354 | 0.17647818 | 0.02613321 | 0.55277636 |
The player gets credit for a 'scatter pay' symbol if it appears anywhere on the screen. Scatter pay wins are based on the total amount bet. The following table shows the number of scatters per reel, total symbols per reel, and the probability of a scatter on that reel, which is 3×(column 2)/(column 3). The reason for multiplying by 3 is there are three visible positions on each reel.
Reel | Scatters | Total Symbols on Reel | Scatter Probability |
---|---|---|---|
1 | 2 | 47 | 0.127660 |
2 | 2 | 46 | 0.130435 |
3 | 2 | 48 | 0.125000 |
4 | 2 | 50 | 0.120000 |
5 | 2 | 50 | 0.120000 |
The next table shows the probability and contribution to the return for 0 to 5 total scatter symbols. The lower right cell shows that the scatter pay feature returns 10.65% to the return of the game.
Scatters | Pays | Probability | Return |
---|---|---|---|
5 | 200 | 0.000030 | 0.005994 |
4 | 25 | 0.001054 | 0.026351 |
3 | 5 | 0.014821 | 0.074106 |
2 | 0 | 0.104168 | 0.000000 |
1 | 0 | 0.365929 | 0.000000 |
0 | 0 | 0.513998 | 0.000000 |
Total | 1.000000 | 0.106451 |
The player earns the bonus if he gets the bonus symbol on reels 1, 2 and 3 on any active pay line. The following table shows the probability of getting the bonus symbol on each of the first three reels. The lower right cell shows the probability of activating the bonus on any active pay line is 0.06%, or 1 in 1,730. If the player plays the maximum 15 pay lines, then the bonus probability per spin is 0.87%, or 1 in 115.
Reel | Bonus Symbols | Total Symbols on Reel | Bonus Probability |
---|---|---|---|
1 | 2 | 47 | 0.042553 |
2 | 5 | 46 | 0.108696 |
3 | 6 | 48 | 0.125000 |
Product | 0.000578 |
There are three parts to the bonus game, as follows:
There are three possibilities for the number of lobster traps, 2, 3 and 4, each with equal probability. Thus, the expected number of traps is 3.
There are two possibilities for the number of lobsters per trap, 2 or 3, each with equal probability. Thus, the expected number of lobsters per trap is 2.5.
The prize per lobster can be anywhere from 5 to 250. Each prize has an associated weighting, as shown in the table below. The way the game might work is it would pick an integer from 1 to 322 and map it to a weight according to this table. The bottom right cell shows an average win of 44.02 per lobster.
Pays | Weight | Probability | Return |
---|---|---|---|
5 | 5 | 0.015528 | 0.077640 |
6 | 5 | 0.015528 | 0.093168 |
7 | 5 | 0.015528 | 0.108696 |
8 | 5 | 0.015528 | 0.124224 |
10 | 20 | 0.062112 | 0.621118 |
12 | 10 | 0.031056 | 0.372671 |
15 | 10 | 0.031056 | 0.465839 |
20 | 20 | 0.062112 | 1.242236 |
22 | 20 | 0.062112 | 1.366460 |
25 | 20 | 0.062112 | 1.552795 |
27 | 20 | 0.062112 | 1.677019 |
30 | 19 | 0.059006 | 1.770186 |
35 | 22 | 0.068323 | 2.391304 |
45 | 24 | 0.074534 | 3.354037 |
50 | 19 | 0.059006 | 2.950311 |
55 | 15 | 0.046584 | 2.562112 |
60 | 15 | 0.046584 | 2.795031 |
65 | 15 | 0.046584 | 3.027950 |
70 | 15 | 0.046584 | 3.260870 |
75 | 15 | 0.046584 | 3.493789 |
100 | 10 | 0.031056 | 3.105590 |
150 | 8 | 0.024845 | 3.726708 |
250 | 5 | 0.015528 | 3.881988 |
Total | 322 | 1.000000 | 44.021739 |
The average win per bonus is (average traps)×(average lobsters per trap)×(average win per lobster) = 3 × 2.5 × 44.021739 = 330.163043.
The expected return for the bonus feature is (bonus probability) × (average win per bonus) = 0.000578168 × 44.021739 = 0.190890.
The following table summarizes the three ways to win in the game. The bottom right cell shows an expected return of 85.012%. In other words, for every dollar the player bets he can expect to get back 85¢.
Item | Return |
---|---|
Line Pays | 55.278% |
Scatter | 10.645% |
Bonus | 19.089% |
Total | 85.012% |
The Harrigan and Dixon paper mentioned they were given par sheets for seven versions of Lobstermania. The available returns were 85.0%, 87.5%, 90.0%, 92.5%, 94.0%, 95.0%, and 96.2%.
I have deconstructed lots of slot machines. Here is a list of them:
Lucky Larry’s LobsterMania is a new slot game, which has already gained a great number of followers. The game is differs from the traditional slot tournaments. Besides, it has a list of unique features and promotions.
It is a 5-reel slot game with a variety of paylines. In contrary of the most popular slot game, monopoly, which has only 9 paylines, the number of paylines offered by LobsterMania machine reaches 25. In general, slot machines offer between 10 and 30 paylines. Players, when making their bets, can put maximum 75 coins per spin. When making bets, millions of players tend to win the main jackpot, which can reach even 50,000 credits.
Being developed by IGT, the company that provides most of the top slot games, Lucky Larry’s LobsterMania is a great tournament with an advanced design and graphics. The audio and visual effects are also of a high quality. Top characteristics of quality are specially provided for players in order to gain better gaming experience.
LobsterMania slots is a 5-reel and 25 paylines game that remains quite a new online slot tournament. Players, when making their bets, can put maximum 75 coins per spin. In addition, when making bets, millions of players tend to win the main jackpot, which can reach even 50,000 credits. The touchscreen technology is also offered for players, who got tired with outdated slot machines. The game is becoming easier and more convenient with touchscreen option, since it gives the game more benefits.
The virtual game is easy, and every new player can remember quickly its simple rules. Even people, who have never played slot game, would find the game quite clear and understandable. Therefore, the re is always a bunch of people, who tend to test own luckiness by playing LobsterMania slots.
Since IGT Company that provides most of the top slot games developed the game, this online tournament offers advanced design and graphics. The audio and visual effects are of a high quality for players in order to gain better gaming experience.
LobsterMania slots offers many advantages for players, who adores slot games. In particular, it offers bonus rounds, which can be added to the playing regular slots’ experience. With to main rounds offered – the Lucky Larry’s Lobstermania Buoy Bonus Round and the Great Lobster Escape. Every player can multiply own winning significantly, without risking or loosing own money.
The bonus rounds always require high level of focus and concentration. When facing caged lobster symbols, every played must be attentive to those symbols, since they are crucial for winning a bonus round. Spotting the symbols is essential, if you want to win a bonus round. It is better to spot them as quickly as possible. When catching three lobster icons, the player will win a bonus round, which can bring great wins. During the bonus round mentioned, players have to free lobsters from their cages, in order to win. Every freed lobster increases player’s scores, and multiplies it significantly.
The bigger lobster a certain player frees the higher scores he gets. This bonus round makes the game more intriguing and exciting, besides it brings bigger winnings.
Lucky Larry’s LobsterMania is a great tournament with an advanced design and graphics. It is a 5-reel slot game with a variety of paylines. In contrary of the most popular slot game, monopoly, which has only 9 paylines, the number of paylines offered by LobsterMania machine reaches 25
When making bets, millions of players tend to win the main jackpot, which can reach even 50,000 credits. With a great bonus offer, every player increases own chances to win the main prize.
Being developed by IGT Company that provides most of the top slot games, the game offers audio and visual effects of a high quality. Top characteristics of quality are specially provided for players in order to gain better gaming experience.
The virtual game is easy, and every new player can remember quickly its simple rules. Even people, who have never played slot game, would find the game quite clear and understandable.