Here's a port of Hydra Castle Labyrinth, a platform/puzzle game that was originally released for Windows but was later reverse-engineered and ported to the 3DS, PlayStation Vita, Pandora and now the GCW0.
Here's the download link, download the zip file and extract it :https://github.com/gameblabla/hydracastlelabyrinth/releases
Since my GCW0 broke, i have no idea if this runs well. (i can only run it in qemu)
(Would be nice if someone wants to send me a GCW0, a working one this time lol.)
Hope you had a good shitmas.