Super Mario Bros NES Game & Builder is a faithful simulation of the original Super Mario Bros. game for the Nintendo Entertainment System.

Users can build their games with all the classic capabilities, and without the limits imposed by the NES hardware. There is little to no learning curve to master building custom levels! The game comes packaged with an editable copy of the original game, rebuilt for this program. Some of the game's features include the following:

Virtually limitless numbers of levels/warps/enemies/blocks/pipes/etc.

Intuitive warping framework to seamlessly switch between scenes.

Custom level names, time limit options, pipe colors, etc.

Password protected games, to share unchangeable designs with other players.

Bowser battles, flagpoles, Lakitu, flying fish, auto-scrolling cameras, and other custom level features.

Builder tools like tracing warps, editing sprite properties, changing game physics, inserting enemies in real-time, and much more.

Cheats such as God mode, Lost Level's textures, and unlimited fireballs (compared to just the two on screen at a time like we're used to).