wideNES: see outside the viewport while playing classic games

wideNES is a novel technique to automatically and interactively map-out NES games, in real time.As players move within a level, wideNES records the screen, gradually building-up a map of whats been explored. On subsequent playthroughs of the level, wideNES syncs the action on-screen to the generated map, effectively letting players see more of the level by peeking past the edge of the NESs screen! Best of all, wideNESs approach to mapping games is totally generalized, enabling a wide range of NES games to work with wideNES right out of the box!

Why not extract levels directly from ROMs?Trying to extract level data from a NES ROM would be equivalent to determining which sections of the ROM are code (as opposed to data), which is hard, since finding all code in a given binary is equivalent to the Halting problem!wideNES takes a much simpler approach: Instead of guessing how games pack level data in ROM, wideNES will simply run the game and watch the output!