Batman (NES)

Sunsoft's NES version of Batman is a side-scrolling platformer based on the movie of the same name. Two prototype versions have been dumped, the earlier of which contains completely different cutscenes and&mdash;oddly enough&mdash;does not actually let you battle the Joker. (Thankfully, this grievous error was later corrected.)

1-up Powerup


This item is laying around in the first stage of the prototype, and nowhere else. It can be picked up and, as you may have guessed, awards an extra life. Only its graphics and tilemap remain in the final, which is kind of odd considering how little code it must have required.