NintendoDS/Gameboy AdvanceSP/ Xbox / Nintendo Wii/ GP2X WIZ/ GP2X Caanoo/ Dingoo A320/ Sony PS1/ Sony PS2 (one Phat and one SLIM)/ Gamecube/ Dreamcast/ Sega Satun/ Sega CDX/ CDi/ 3DO/ Sega Genesis model 1/ Sega Master System/ FC Mobile II/ PS1 (Original and SLIM)/ YINLIPS YDPG18/ Colecovision/ Intellivision II/ PSP/ Ti99a/ Atari 5200/ Atari 7800/ Atari 2600 Jr./ Atari 1040ste/ Atari 1040stf/ Commodore 64/ Commodore C64/ Super Nintendo/ NEO GEO CD/ N64 - PLUS a pretty decent Desktop and an average laptop.
The 5200/A8 versions are the same audiovisually, but the 5200's analog stick allows finer control, and it has separate buttons for firing and bombing. The Intellivision version is the original, and its horizontal orientation on a 4:3 screen shows more of the enemy ship at once, which I prefer.