OMG I used to play TwinTris on the Amiga
Watch this video for the big explosion effect, he gets it 2nd time around
http://www.youtube.com/watch?v=-hQm8yykZfA
when you made a big set of rows it would explode and make your screen go all wobbley like an aftershock, put that feature in I love it!
i like your idea of different blocks per level, but i think the music should change per level too, by the Dolphin level I got requests to turn it off!
DinoHunter (still no nVidia compo voucher!), CPU/GPU Benchmark, DarkFish Encryption DLL, War MMOG (WIP), 3D Model Viewer