2023 · DOS · Commodore C64/128/MAX · Amstrad CPC · ZX Spectrum · MSX · MSX2 · Atari 7800 · Sega Master System/Mark III · Atari 8-bit · Atari 5200 · ColecoVision · BBC Microcomputer System · Commodore VIC-20 · Apple II · Sharp X1 · SG-1000 · TurboGrafx-16/PC Engine · Commodore PET · Commodore 16 · PC-8800 Series · TRS-80 · Texas Instruments TI-99 · Acorn Electron · PC-9800 Series · TRS-80 Color Computer · FM-7 · NEC PC-6000 Series · Sinclair ZX81 · Sharp MZ-2200 · Tomy Tutor / Pyuta / Grandstand Tutor
The game is cleared when all the stars are taken. The cracked floor disappears when you pass over it, so you can only pass through it once.