Red Falcon is an editor for the US version of Contra on the NES. It was released under Mac OS X Mavericks (10.9), although it is backwards compatible down to Mac OS X Leopard (10.5), and should work on Mac OS X Yosemite (10.10). It can be run on 32 bits and 64 bits systems.

This application lets you edit all levels of the game. You can add sections to extend the length of the levels. You can add, remove and edit enemy types, position and properties. You can modify the color palettes for the background and the sprites.

Red Falcon can, and should, edit the expanded version of the Contra ROM. This version has twice the number of data banks than the original game, which lets you create longer levels. A copy of the expanded version of the Contra ROM is included with the ZIP file of the application.

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