Action 53
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Action 53 is a multicart engine by Damian Yerrick that stuffs dozens of NROM games that use vertical mirroring into one ROM image using mapper 34. It can also be made to work with CNROM multicarts as long as they don't switch CHR banks during play.
A multicart mapper was designed for this project to more easily accommodate games larger than NROM. This multi-discrete mapper (iNES #28) can simulate the behavior of popular discrete boards. In the first volume, the menu and all games except STREEMERZ run in this mapper's BNROM compatibility mode.
