Super Mario Bros: The Lost Levels, and Ball (Mario version). If and when Woot's deal sells out, you can purchase the Mario ...

Yes, Super Mario Bros ... So what if it wasn't originally a Mario game? Have you played the Lost Levels? This game is infinitely more inventive than that.

If you can get your hands on a working Game Genie — a device for hacking "cheats" into games —there's an even easier way to just input a code and access all these levels.