I think I'll need to make this a project that is worked on upon multiple users, because I do not know how to program enemy AI.
Mappy and all related characters, music, and gameplay is all owned by Bandai Namco. Namco, if you are reading this, please do not take it down. I do not intend for this project to give illegal access of Mappy to the general public. This is only a fan-made homage to the classic game. Thank you for all of your wonderful games.