* A prototype version of the game exists with different theme music and some variations in play. <ref>{{cite web|title=TI-99/4A Video Game House: The Attack|url=https://www.videogamehouse.net/theattack.html}}</ref>
<gallery mode="packed">
1980 the attack cartridge (prototype cartridge).png|1980 The Attack Prototype Cartridge
1981 the attack cartridge (prototype black & blue).png|1981 The Attack Prototype Cartridge
1981 the attackecartridge (black label).png|1981 The Attack Retail Cartridge
1983 the attack cartridge (red label on beige).png|1983 The Attack Retail Cartridge
</gallery>
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