Ok, I'm releasing this build as it seems it run almost perfectly.
This "branch" will soon be replaced by a new opentyrian-c4all. save will be compatible between the two version so feel free to use that version for now.
For those who do not know it, Tyrian is a nice shooter. OpenTyrian is an opensource reimplementation of the engine.
details on Tyrian can be found there:http://en.wikipedia.org/wiki/Tyrian_%28video_game%29
a few mandatory screenshots:
and of course, the download link:OpenTyrian.opk
that OPK already include the game data, you just have to drop it on your gcw0 and you're ready to play.
and here are the only modified file from the original OpenTyrian
there's no source change, the default key mapping problem is solved by running a script during application startup rather than source modifications...
edit: updated links to a more durable googledrive and bumped to my last version which use pristine source from the original OpenTyrian project...