Aug 21, 2022

American Dream (Famicom game) Slot Machine Odds

I originally wrote this up to post on GameFAQs, but apparently they interpreted it as pertaining to ROM hacking. As if none of the cheats and easter eggs listed on their site were ever discovered via hacking. Or maybe they just thought this game wasn't worth keeping a text guide for. ...I wouldn't fault them for that. I mean, it's just a slot machine game.


I. Introduction

============================


Why, you may ask, write a guide for a Famicom game nobody cares about?
I don't know. Honestly. I just loaded it up one day and took a peek at
the coding for some inexplicable reason. This is what came of it.

Each machine in Game Mode (the mode with the map of New York City) has a preset
chance to hit the top four jackpots. Each time you pull the lever, there is a
50% chance the game will count it toward the jackpot. Once you hit the jackpot,
the counter will reset, but the odds will remain the same. For multiline
machines, the jackpot can appear on any line, so it's best to MAX BET when you
suspect the machine is about to hit big.

There are eight possible odds, ranked from S (loosest) to
K (stingiest). They are as follows:
    
    S    008 pulls
    A    016 pulls
    B    032 pulls
    C    048 pulls
    D    064 pulls
    E    080 pulls
    F    096 pulls
    K    112 pulls

Coincidentally, machines fall into four sets of odds:
    DEDSDAEK   ACCCCFBC   BDESFCCK   CBDBDDDE
As such, you may notice the patterns between machine sets.



II. Navigating Casinos

============================


Casinos have four floors. Each time you enter a casino, you start on
Floor 1. Walking up through the doorway increases the floor number, looping
around from floor 4 to floor 1. Likewise, walking down through the doorway
decreases the floor number, looping around from floor 1 to floor 4.

Floors commonly have 18 machines divided into three sets of 6 identical machines.
Some floors have 24 machines, and a couple have 30 machines. If the same set of
machines appears more than once on a floor, they will have identical odds.

Each area after Brooklyn has a casino with a VIP lounge. The VIP lounge
will always be at the very far right of floor 4 in that casino. In addition
to VIP lounges, each area after Queens has a VIP tower (or spire in Manhattan).
Both lounges and towers require a VIP card. There are three hidden VIP cards:
the West Brooklyn, North Bronx, and West New Jersey. Either of the three cards
will grant access to VIP casinos. In addition to the card, you must also have
enough funds for at least one token. Lounges and towers have the same layout
as common casinos, with four floors and 18 to 30 machines in sets of 6.



III. Tips for Winning Fairly

============================


The last section of this guide details the odds of each machine in the game.
If you would rather try to beat the game fair and square, here are some tips:

1. Count how many times you pull the lever until you hit a jackpot.
    You are guaranteed to hit a jackpot, so count each pull until you get
    a jackpot in order to get an idea for the machine's odds.
2. Never max your bet on the first 7 pulls.
    The minimum number of pulls for a guaranteed jackpot is 8. Sure, you
    might get lucky and hit a jackpot before then, but why risk it?
3. Do not max your bet on the next 7 pulls after a jackpot.
    The minimum number of pulls resets after every jackpot. Again, you
    might get lucky, but just hold onto your money.
4. Do not max your bet until you hit a jackpot at least once.
    Play cautiously at first so you can gauge the machine. If you hit
    a jackpot within 32 pulls, you know it's safe to max your bets.
5. Try to stay on a machine for at least 30 pulls.
    The best machines will have a guaranteed jackpot within 16 pulls. With
    a 50% chance for pulls to not count, you should hit within 32 pulls.
6. Abandon machines with rare payouts.
    If it takes you more than 32 pulls to get a jackpot, that machine is
    probably not worth playing. Move on to another machine.



IV. Game Mode Machine Odds [!!SPOILERS!!]

============================


This guide will categorize each machine by casino. Casino order is based on
the order in actual game data. Machine order is from left to right by floor
(I will list the floor cost to make it clearer).

These odds are only for Game Mode. Even though each machine has odds generated
for it in Simulation Mode, the game never uses them and are thus purely random.
I'm pretty sure modern slot machines aren't purely random, so calling this a
"simulation mode" seems odd to me. Whatever.

Note about Casino #10: There are only nine normal casinos in the game.
Maybe Casino #10 was supposed to be Brooklyn VIP Tower, but was removed.
Hacking byte 0x46, due to how the game is programmed, a valid casino is
generated, with each floor being identical and requiring $5 to play.


Casino #01: Brooklyn Low

---------------------
Floor 1 ($1)
    Pachi Slot     Pot o'Gold     Jack Pot       Dbl Cktail
    K D E D S D    B C A C C C    D E C B D B    K B D E S G
Floor 2 ($5)
    Pot o'Gold     Bonus Slot     Jack Pot
    C K B D E S    K B D E S F    B C A C C D
Floor 3 ($10)
    Pot o'Gold     Jack Pot       Pachi Slot
    B C A C C C    D E C B D B    K D E D S E
Floor 4 ($25)
    Bonus Slot     Pot o'Gold     Dbl Cktail
    A C C C C F    C A C C C C    B D E S F D


Casino #02: Brooklyn High

---------------------
Floor 1 ($1)
    Pachi Slot     Jack Pot       Dbl Cktail
    C K B D E S    E K D E D S    B C A C C D
Floor 2 ($5)
    Pot o'Gold     Jack Pot       Pachi Slot
    B C A C C C    D E C B D B    K D E D S E
Floor 3 ($25)
    Pot o'Gold     Bonus Slot     Pachi Slot     Jack Pot
    C A C C C C    C C C C F B    E D S D A E    C B D B D E
Floor 4 ($50)
    Jack Pot       Dbl Cktail     Pachi Slot     Bonus Slot
    C B D B D D    D E S F C C    E D S D A E    C C C C F C


Casino #03: Queens Low

---------------------
Floor 1 ($5)
    Pachi Slot     Jack Pot       Dbl Cktail
    K D E D S D    D E C B D B    K B D E S G
Floor 2 ($25)
    Dbl Cktail     Bonus Slot     Pot o'Gold     Pachi Slot
    D S D A E K    E S F C C K    D E S F C C    B D B D D E
Floor 3 ($50)
    Pot o'Gold     Jack Pot       Pachi Slot
    D E D S D A    B D E S F C    A C C C C G
Floor 4 ($100)
    Pot o'Gold     Bonus Slot     Pachi Slot     Jack Pot       Pot o'Gold
    S D A E K D    D A E K D E    C C F B C A    S F C C K B    S D A E K E
    (Leads to Casino #15: Queens VIP Lounge)


Casino #04: Bronx Low

---------------------
Floor 1 ($5)
    Bonus Slot     Pot o'Gold     Dbl Cktail     Jack Pot
    B D B D D D    C B D B D D    C C C C F B    E D S D A F
Floor 2 ($25)
    Dbl Cktail     Bonus Slot     Pachi Slot
    B D E S F C    A C C C C F    D E D S D B
Floor 3 ($50)
    Pot o'Gold     Bonus Slot     Jack Pot
    C B D B D D    B D B D D D    E D S D A F
Floor 4 ($100)
    Pachi Slot     Jack Pot       Dbl Cktail
    D E S F C C    E D S D A E    C C C C F C


Casino #05: Bronx High

---------------------
Floor 1 ($10)
    Bonus Slot     Pot o'Gold     Dbl Cktail
    C C C C F B    A C C C C F    D E S F C D
Floor 2 ($50)
    Pot o'Gold     Bonus Slot     Pachi Slot     Jack Pot
    D S D A E K    S D A E K D    C C C F B C    E S F C C H
Floor 3 ($100)
    Pachi Slot     Pot o'Gold     Jack Pot       Dbl Cktail
    D B D D D E    E S F C C K    C C C F B C    S D A E K E
Floor 4 ($250)
    Pachi Slot     Bonus Slot     Jack Pot       Pot o'Gold     Pachi Slot
    A E K D E D    F B C A C C    D D D E C B    C F B C A C    A E K D E E
    (Leads to Casino #16: Bronx VIP Lounge)


Casino #06: Manhattan High

---------------------
Floor 1 ($50)
    Bonus Slot     Pot o'Gold     Dbl Cktail     Jack Pot
    C C F B C A    C C C F B C    S F C C K B    D B D D D F
Floor 2 ($100)
    Dbl Cktail     Bonus Slot     Pachi Slot     
    B D B D D D    D S D A E K    C C C C F B    
Floor 3 ($250)
    Pachi Slot     Pot o'Gold     Jack Pot       Dbl Cktail
    D D D E C B    F C C K B D    C F B C A C    A E K D E E
Floor 4 ($500)
    Dbl Cktail     Bonus Slot     Dbl Cktail     Pot o'Gold     Dbl Cktail
    C K B D E S    B C A C C C    C K B D E S    F B C A C C    C K B D E A
    (Leads to Casino #17: Manhattan VIP Lounge)


Casino #07: New Jersey North

---------------------
Floor 1 ($50)
    Pot o'Gold     Dbl Cktail     Bonus Slot     Pachi Slot     
    A E K D E D    D D E C B D    E K D E D S    F B C A C C    C C K B D F
Floor 2 ($100)
    Jack Pot       Dbl Cktail     Pachi Slot     Bonus Slot
    S D A E K D    C C F B C A    S F C C K B    B D D D E C
Floor 3 ($250)
    Pot o'Gold     Jack Pot       Pachi Slot     
    C C C F B C    D B D D D E    S D A E K E
Floor 4 ($500)
    Pachi Slot     Jack Pot       Dbk Cktail
    S F C C K B    S D A E K D    C C F B C B


Casino #08: New Jersey Grand

---------------------
Floor 1 ($50)
    Dbl Cktail     Bonus Slot     Pot o'Gold     Pachi Slot
    C F B C A C    D D D E C B    B D D D E C    F C C K B E
Floor 2 ($100)
    Pot o'Gold     Bonus Slot     Pachi Slot     Jack Pot
    B D D D E C    D D D E C B    F C C K B D    D A E K D F
Floor 3 ($250)
    Pachi Slot     Pot o'Gold     Jack Pot       Bonus Slot     Dbl Cktail
    D D E C B D    C C K B D E    F B C A C C    C K B D E S    E K D E D A
Floor 4 ($500)
    Dbl Cktail     Bonus Slot     Pachi Slot     Bonus Slot     Pachi Slot
    C A C C C C    E C B D B D    K B D E S F    E C B D B D    K B D E S G
    (leads to Casino #18: New Jersey VIP Lounge)


Casino #09: New Jersey South

---------------------
Floor 1 ($10)
    Bonus Slot     Pot o'Gold     Dbl Cktail     Jack Pot
    C F B C A C    C C F B C A    F C C K B D    B D D D E C
Floor 2 ($100)
    Pachi Slot     Jack Pot       Dbl Cktail
    S F C C K B    S D A E K D    C C F B C B
Floor 3 ($500)
    Dbl Cktail     Jack Pot       Pot o'Gold     Pachi Slot     Bonus Slot
    B C A C C C    E K D E D S    D D E C B D    C K B D E S    D E C B D C
Floor 4 ($1000)
    Bonus Slot     Pot o'Gold     Dbl Cktail     
    D D E C B D    D D D E C B    F B C A C C    


Casino #10: Unused Casino (accessed via hacking)

---------------------
Floor 1 ($5)
    Dbl Cktail     Bonus Slot     Pachi Slot
    C C C F B C    D B D D D E    E S F C C H


Casino #11: Bronx VIP Tower

---------------------
Floor 1 ($1000)
    Dbl Cktail     Bonus Slot     Pachi Slot
    D D D E C B    A E K D E D    C F B C A D
Floor 2 ($1000)
    Pachi Slot     Pot o'Gold     Jack Pot         Dbl Cktail
    C K B D E S    D D E C B D    E K D E D S    B C A C C D
Floor 3 ($5000)
    Pot o'Gold     Bonus Slot     Jack Pot
    F B C A C C    B C A C C C    D D E C B E
Floor 4 ($5000)
    Bonus Slot     Pot o'Gold     Dbl Cktail
    K D E D S D    E K D E D S    D E C B D C


Casino #12: Manhattan VIP Tower

---------------------
Floor 1 ($5000)
    Pot o'Gold     Bonus Slot     Jack Pot
    F B C A C C    B C A C C C    D D E C B E
Floor 2 ($5000)
    Pachi Slot     Pot o'Gold     Jack Pot       Dbl Cktail
    K D E D S D    B C A C C C    D E D S D A    K B D E S G
Floor 3 ($10000)
    Dbl Cktail     Bonus Slot     Pachi Slot     
    C K B D E S    B C A C C C    E K D E D S    
Floor 4 ($10000)
    Pachi Slot     Pot o'Gold     Jack Pot       Bonus Slot     Dbl Cktail
    E D S D A E    A C C C C F    C B D B D D    C C C C F B    D E S F C D


Casino #13: New Jersey VIP Tower

---------------------
Floor 1 ($50000)
    Pot o'Gold     Bonus Slot     Jack Pot       
    B C A C C C    C A C C C C    D E C B D B    
Floor 2 ($50000)
    Pot o'Gold     Bonus Slot     Pachi Slot     Jack Pot
    E C B D B D    C B D B D D    B D E S F C    D E D S D B
Floor 3 ($100000)
    Jack Pot       Dbl Cktail     Pachi Slot     Bonus Slot
    D E D S D A    A C C C C F    B D E S F C    C B D B D E
Floor 4 ($100000)
    Bonus Slot     Pot o'Gold     Dbl Cktail
    C B D B D D    E C B D B D    A C C C C G


Casino #14: New Jersey VIP Deluxe

---------------------
Floor 1 ($100000)
    Pot o'Gold     Dbl Cktail     Bonus Slot     Pachi Slot     Jack Pot
    C C C F B C    S F C C K B    C C F B C A    S D A E K D    D B D D D F
Floor 2 ($100000)
    Dbl Cktail     Bonus Slot     Pot o'Gold     Pachi Slot
    B D B D D D    D S D A E K    E D S D A E    C C C C F C
Floor 3 ($1000000)
    Pot o'Gold     Jack Pot       Pachi Slot
    E C B D B D    D E D S D A    B D E S F D
Floor 4 ($1000000)
    Pachi Slot     Jack Pot       Dbl Cktail     
    B D E S F C    D E D S D A    A C C C C F    


Casino #15: Queens VIP Lounge

---------------------
Floor 1 ($500)
    Pot o'Gold     Bonus Slot     Pachi Slot     Jack Pot
    C A C C C C    A C C C C F    D E D S D A    E C B D B E
Floor 2 ($500)
    Dbl Cktail     Jack Pot       Pot o'Gold     Pachi Slot     Bonus Slot
    D E S F C C    C B D B D D    A C C C C F    E D S D A E    C C C C F C
Floor 3 ($500)
    Pot o'Gold     Bonus Slot     Jack Pot       
    K D E D S D    D E D S D A    K B D E S G
Floor 4 ($500)
    Jack Pot       Dbl Cktail     Pachi Slot     Bonus Slot
    D E D S D A    A C C C C F    B D E S F C    C B D B D E


Casino #16: Bronx VIP Lounge

---------------------
Floor 1 ($500)
    Dbl Cktail     Bonus Slot     Pot o'Gold     Pachi Slot
    D E S F C C    C C C C F B    A C C C C F    E D S D A F
Floor 2 ($500)
    Pachi Slot     Jack Pot       Dbl Cktail     
    K B D E S F    K D E D S D    C A C C C C    
Floor 3 ($500)
    Bonus Slot     Pot o'Gold     Dbl Cktail     Jack Pot
    B D B D D D    C B D B D D    C C C C F B    E D S D A F
Floor 4 ($500)
    Pot o'Gold     Jack Pot       Pachi Slot          
    C A C C C C    E C B D B D    D E D S D A       


Casino #17: Manhattan VIP Lounge

---------------------
Floor 1 ($5000)
    Dbl Cktail     Jack Pot       Pot o'Gold     Pachi Slot     Bonus Slot
    C C C F B C    D S D A E K    B D B D D D    E S F C C K    D B D D D F
Floor 2 ($5000)
    Dbl Cktail     Bonus Slot     Pot o'Gold     Pachi Slot
    C C C F B C    D B D D D E    B D B D D D    E S F C C H
Floor 3 ($10000)
    Pot o'Gold     Jack Pot       Pachi Slot     
    A C C C C F    C B D B D D    E D S D A E    
Floor 4 ($10000)
    Jack Pot       Dbl Cktail     Pachi Slot     Bonus Slot
    B D B D D D    E S F C C K    D S D A E K    C C C F B D


Casino #18: New Jersey VIP Lounge

---------------------
Floor 1 ($50000)
    Pot o'Gold     Dbl Cktail     Bonus Slot     Pachi Slot     Jack Pot
    F C C K B D    A E K D E D    C C K B D E    D D D E C B    C F B C A D
Floor 2 ($50000)
    Pachi Slot     Pot o'Gold     Jack Pot       Dbl Cktail
    C C C F B C    D S D A E K    E S F C C K    D B D D D F
Floor 3 ($100000)
    Dbl Cktail     Bonus Slot     Pachi Slot    
    B D B D D D    D S D A E K    C C C C F B   
Floor 4 ($100000)
    Bonus Slot     Pot o'Gold     Dbl Cktail     Jack Pot
    F C C K B D    S F C C K B    D A E K D E    C C F B C B


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