A demo of Gekido, a beatemup, was released for GBC on Naps Team facebook page: https://www.facebook.com/naps.team/videos/vb.482845365188548/841279089345172/?type=3&theater There were version released for GBA and Playstation. Here's a unseen 64 page on it. https://www.unseen64.net/2010/10/25/gekido-gameboy-color-cancelled/#comment-235380
I was instrumental In inspiring Domenico to release them. There are a few others, another beat'em up demo, and we bought out 2 complete games from them (Unreleased) for GBC. Check their page, I think they released like 3 demos.
