Yeah, this page features prototype games that never made it to the stores !
Berzerk :

Download
Jr Pacman :

Download
Kangaroo :

Download
Star Trux :

Download
Stargate :

Download
Super Pacman :

Download
Superman III :

Download
The last starfighter :

Download

Yeah, Deflektor is one of the few 64K bankswitching prototype carts and  is only playable with the new Atari800Win 3.0 Emulator.
(Atari800Win 3.0 supports now XE bankswitching roms)

If someone can convert it to a normal "com" - file it would be great !

Please contact me if you have more prototype roms !
I'm looking for "Commando" and "Midi Maze", do they exist ?