: Each game includes a single quicksave/quickload slot.

: Supports local two-player action as originally intended (requires two controllers for PC). System Requirements (Windows 10 64-bit)

: Contra (NES/Famicom), Super C (NES), Contra III: The Alien Wars (SNES), Operation C (Game Boy), and Contra: Hard Corps (Genesis).

: Includes European versions Super Probotector: Alien Rebels and Probotector , which replace human characters with robots.