TandeM
Mega Pandora Mania?
Kenta Cho's rRootage is a killer shmup for the PC. It's open source, uses SDL, has OGG BGM, and runs (relatively) smoothly in hi-res (640x480) mode on a P166.
Bullet patterns are handled with BulletML (libs here). RNG (random number generation - creates unique patterns on the fly) is done with the Mersenne Twister algorithm. C source of the MT algorithm is available here.
OpenGL is required, though, and I imagine that isn't exactly the GP32's forte. I'm not sure if it can handle all that pixel pushing, but some demos (3400 sprites, etc.) make it seem possible.
If rRootage can't be ported (or ported well) for one reason or another, perhaps another game from that site can?
Bullet patterns are handled with BulletML (libs here). RNG (random number generation - creates unique patterns on the fly) is done with the Mersenne Twister algorithm. C source of the MT algorithm is available here.
OpenGL is required, though, and I imagine that isn't exactly the GP32's forte. I'm not sure if it can handle all that pixel pushing, but some demos (3400 sprites, etc.) make it seem possible.
If rRootage can't be ported (or ported well) for one reason or another, perhaps another game from that site can?