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Scramble 500

This is a (successful) attempt by jotd to create a 1:1 port of the famous arcade game on Amiga 500 using 100% 68k assembly.


- any 68k CPU

- Kickstart 1.3, 1MB memory

- Kickstart 2.0, 1MB memory


- original portrait layout, visual & sounds

- faithful enemy behaviour & speed & increasing difficulty

- 50 frames per second (PAL) even on a 68000 A500

- all levels

- joystick/joypad controlled (port 1) or keyboard controls (arrows + ctrl + alt), P pauses

- 2 player mode (still using joystick in port 1)

- 2/3 button joystick and CD32 joypad support

- can run directly from shell or from whdload (fast machines/high-end configurations)


- joystick directions/arrows: move player

- control/left alt/fire button/second button: start game

- P/third button (3 joystick button)/play button (cd32): pause

- F10 (or quitkey): quit (and save scores)

- two button joystick/joypad: fire to shoot, second button to bomb

- one button joystick: fire to shoot and bomb

- when game is about to start (intro music playing), press any

  direction to change controls. If a cd32 joypad is connected, two button

  mode is selected by default. Also, if keyboard is used to launch bombs,

  it also selects two-button mode.

  If game is started using bomb or second button, two-button mode is also


- when the game prompts "one player only", move the joystick to switch to "two players"


- all levels: shoot/bomb everything! don't miss fuel tanks to avoid running out of fuel

- level 1: avoid landscape and flying rockets

- level 2: shoot UFOs

- level 3: avoid fireballs

- level 4: same as 1, just more difficult

- level 5: navigate up and down without hitting the walls

- level 6: destroy base

If you complete all the levels, game restarts at level 1, but this

time fuel decreases faster.


- Jean-Francois Fabre (aka jotd): code and gfx/sfx conversion

- hajodick (EAB): game map rips from the arcade

- Andrzej Dobrowolski (aka no9, from EAB): music & sfx loops (plus sfx advice)

- Scott Tunstall: brilliant reverse engineering work of the arcade version
- Frank Wille (aka phx): sfx/module player (and of course vasm assembler!)

- ross (from EAB): help with screen centering

- 125scratch: sprite rips https://www.spriters-resource.com/arcade/scramble

- DanyPPC: icon

- meynaf: random routine

- eab.abime.net forum: useful advice, invaluable testing & support

- konami: original game :)


- level 4/5 filler bricks are inverted (brick then square) in the bottom section

  or is it the odd/even tile pattern? well, who cares? not me.

- when a highscore is entered, the flashing doesn't work that well

- fireball stage fireballs are flickering on some configs (maybe ok now)

Rated 5.0 out of 5 stars
(3 total ratings)
TagsArcade, Cult Classic, Shoot 'Em Up


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Click download now to get access to the following files:

scramble.zip 360 kB

Development log


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Hey, I'm a student who's working on recreating Scramble 1981. Could you contact me and share some information about your version with me and my team?

Very nice conversion. Our German-language review can be found in our recorded livestream starting at 05:18:25. Subscription to our YouTube or Twitch channel is welcome. 🙂


With Your latest update, Now It works correctly (without scrolling problems) on a real A500 68000 512k+512k and a Gotek Drive (ADF).

For More security, I try it too on another A500 68000 with my ACA500Plus on some configs (@7, @14 & @ 28 Mhz) under WHDLoad install=> It works without any Problems too.

Many Thanks,

Best regards,


that's excellent. Thanks for testing & reporting

Deleted 1 year ago
Deleted 1 year ago

exellent fee free to do a moon patrol or mr do :) top port on this one A1+

Thank you so much for the great job

(1 edit)

Woop woop!!! Featured this game right from day 1!


thanks for the advertisement!


This update with 2-player is just as playing the arcade! Simply perfect.

Another update!!!

Thank you man.

This and River Raid are the games I wanted for the Amiga.

Thank you jotd,

I'm blown away by your arcade ports! 

Another perfect conversion. Thanks :)

Really enjoying these arcade ports - would be good to talk to you for Retro Gamer, especially about your Amiga Game Jam entries. Get in touch @merman1974 on Twitter

I just registered to twitter. I'm following you now you can message me

Great, thanks!

very good