A Gens fork. Modifications include slowdown, recording and playback of controller input logs, AVI file dump, and Lua scripts. Besides recording and exporting to video, it has many other additional features and conveniences:

• 7z archive support
• cue support for Sega CDs
• improved Sega CD emulation (CPU->Perfect Sync)
• redesigned gamepad button binding setup
• new graphic filters
• game slowdown option
• ..and others.

There is a modified version with increased processor frequency and support for ROMs up to 13MB.