Yeah, I tried using it as a mod for FInal Doom in GZDoom, and it kind of works, but it messes up the title screen and menu, the levels have been replaced, there is only 1 moo in the level I tried and I can't attack it... I'm not sure how far you are with the mod, so maybe half of that stuff is to do with the game itself not having everything yet...
Is there any chance you can provide just a mod where it like replaces all enemies with Moos and have Klonoa's ring replace, say, the handgun or chainsaw, play Klonoa music and replace the textures with Klonoa themed ones?