Atari ST Cheats

Config note for ALL games – STF, TOS 1.00 & 512 kb RAM

basic tutorial for Steem Debug

Yvonne-pic  Before modifying anything, make sure you are past the title screen and in the game proper to ensure the game is fully loaded into memory.

 

Addictaball

Inf. Lives

@127F8 change 0001 to 0000

Airball

Inf. Lives

@2A56 change 0001 to 0000

Arkanoid

Inf. Lives

@3342E change 53 to 4A

Arkanoid – Revenge of Doh

Inf. Lives

@651C8 change 53 to 4A

Bolo

Inf. Lives

@AA86 change 5350 to 4E71

Bounce Out

Inf. Lives

@ADCC change 53 to 4A

Inf. Bombs

@A82A change 53 to 4A

Bumerang

Inf. Lives

@15C1E change 53 to 4A

Chubby Gristle

Inf. Lives

@FD62 change 0001 to 0000

Dan Dare III

Inf. Tries

@13AD8 change 0479 0001 to 0479 0000

Deliverance

Invincible

@89EC0 change 6D04 to 4E71

Fire and Brimstone

Inf. Lives

@16A44 change 5356 to 4E71

Golden Axe

Inf. Lives

@4E90 change 53 to 4A

Goldrunner

Inf. Lives

@B60C change 53 to 4A

Haunted House (Eidersoft)

Inf. Energy

@19CE0 change 8109 to 4E71

Jupiter Probe

Inf. Lives

@13940 change entire line to 4E71 4E71

Kasskong

Inf. Lives

note – on-screen it will appear as balls are lost, but you will never run out

@120A0 change 0001 to 0000
Mission Mouse

Inf. Lives

@3D9DE change 8300 to 4E71

Mudpies

Inf. Lives

@F494 change 53 to 4A

Northstar

Inf. Lives

@13680 change 6414 to 6014

Rick Dangerous

Inf. Lives

@3BAD8 change 0439 0001 t0 0439 0000

Collision Cheat

@3B35C change 6708 to 6008

Rick Dangerous 2

Inf. Lives

@13A84 change 0479 0001 to 0479 0000

Inf. Laser

@13D72 change 0479 0001 to 0479 0000

Inf. Bombs

@13996 change 0479 0001 to 0479 0000

Shadow of the Beast

Inf. Energy

note – don’t touch the skeleton boss when it flashes red before it disappears as it will kill instantly.

@5AE44 change entire line to 4e71 4e71 4e71

do the same for

5AF38
5AF80
5AFB4
5AFE2

Shadow Warriors

Inf. Lives

@5C46 change 53 to 4A

Super Breakout

Inf. Lives

@11B9A change entire line to 4E71 4E71

Trantor

note – Retail version only, does not work with Zero magazine version.

Inf. Energy (note – alien on level 4 can still kill you)

@010D32: change 55 to 4A

Thundercats

Inf. Lives

@E686 change 53 to 4A

Collision Cheat

@C560 change entire line to 4E71 4E71

Time Blast

Inf. Lives

@1385E change 0479 0001 to 0479 0000

Inf. Fuel

@136D8 change 0439 0001 to 0439 0000

Vixen

Inf. Lives

@A9A8 change 53 to 4A

Collision Cheat

@BD4A change entire line to 4E71 4E71

Voodoo Nightmare

Inf. Lives

@128B2 change 53 to 4A

 

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Double Dragon (Atari ST) cheating with Steem SSE Debug

 

What you need

Steem SSE Debug

TOS v1.00 image file

The game

Getting started

Setup the emulator from the Options menu (spanner icon) with the TOS mentioned above, set the model to STF, set Monitor (Low\Medium res) and set memory to 512 kb. Your config should look something like the pics below

tos1

st-Falc

Now, click the Perform cold reset now button and then go to the Disk Manager (it is on the far top-right of main window) , and navigate to where your disk image is and double click it.

Once the game has completely finished loading and you are at the title screen (press 1 or 2 to start) – mash the F12 key. Now, bring The Boiler Room window into focus – click the ‘Browsers‘ drop-down menu, and click on ‘New Instruction Browser’ menu item. You will see a window appear like the pic below

dd lives sub

Type in the address shown (102B8) in the upper left corner and press enter. Now click in the Hex area, the top line where it says 5300, and type over this with 4e71, so it looks the same as the highlighted area in the pic below

dd lives nop

That’s it! now, bring the main window back into focus then press the pausebreak key or F12  to resume and If everything went smoothly, you will now have infinite lives. If you also wanted to get rid of the timer, just do the same as above, except the address to punch in is 11AF6 and you replace 8300 with 4E71.