For those of you that need to cheat while playing ZZT, DreamZZT now has an interactive console that can be brought up by pressing the ` key (inspired by Kev‘s mzxdbg).
It supports ZZT’s cheat commands (zap, -dark, +gems, etc.), plus a few new commands too. It also provides feedback for whats going on in the game, including ZZT-OOP commands and messages.