ClownMDEmu v1.6.6 released on GitHub with cheat-code support

ClownMDEmu v1.6.6, published 2026-02-22, ships a headline feature: built-in cheat code support. The project announcement text states, "Cheat Code Support One of the most frequently-requested features of ClownMDEmu is support for cheat codes, which allow for altering a game's behaviour to suit the player; this can be granting the player infinite lives, fixing bugs in the game, or even unlocking hidden content." The release was posted to the project's GitHub releases page and was summarized by EmuCR.

Binaries and a web-play option remain part of the distribution strategy for the emulator. Clownacy’s Corner posts repeat the call to action, "Download here, or try it in your web browser!" and earlier changelogs document Emscripten-friendly development: v1.6.4 introduced "Automatic Software Loading in Emscripten Builds" so URLs can be passed to the emulator to download and run software automatically, which implies cheat testing could be tried in-browser as well as in desktop builds.

The supplied story title lists Game Genie and Action Replay formats, but that detail is not present in the quoted Clownacy excerpt for v1.6.6. The v1.6.6 announcement explains the purpose and common uses of cheat codes but does not enumerate specific cheat formats in the supplied text; confirming support for Game Genie and Action Replay requires checking the v1.6.6 changelog on GitHub or the full Clownacy blog post and the EmuCR summary for explicit format names and usage instructions.

v1.6.6 arrives on the heels of a sequence of incremental fixes and interface tweaks across recent minor versions. The v1.6.4.1 excerpt lists concrete engineering fixes: "Fixed memory leak when using CHD files," "Fixed files being corrupted immediately after loading them in Emscripten builds (use-after-free bug)," "Fixed audio not playing when loading a game from the command-line," and "Fixed options and save data not being saved in Emscripten builds." Earlier releases addressed player-facing features and regressions: v1.6.2 notes that the project "Made it clearer when the widescreen hack is disabled" and that "Holding multiple fast-forward inputs at once now causes the emulator to run even faster," while v1.6.1 documents a resolution mismatch rooted in v1.5’s hardcoded horizontal resolution of 400×224 versus an internal render at 416×224.

The immediate impact for users is clear: v1.6.6 adds the explicit ability to alter game behaviour via cheats in builds distributed through GitHub and via Clownacy’s web-play option. To confirm which cheat encodings and workflow details are implemented, consult the v1.6.6 release notes on the project’s GitHub releases page and the full Clownacy v1.6.6 post; EmuCR’s summary may provide a secondary paraphrase of those specifics. If the GitHub changelog names Game Genie and Action Replay support, that would bring decades-old cheat workflows into both desktop and Emscripten web builds for the Sega Mega Drive / Genesis emulator.