Scramble 500 by jotd666
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.
REQUIRES:
– any 68k CPU
– Kickstart 1.3, 1MB memory
– Kickstart 2.0, 1MB memory
FEATURES:
– 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)
CONTROLS:
– 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
selected.
– when the game prompts “one player only”, move the joystick to switch to “two players”
HOW TO PLAY:
– 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.
CREDITS:
– 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 🙂
MINOR ISSUES:
– 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)