This is a C64 game called Klax. It's been cracked and trained (actually not sure what that part entails on oldschool stuff like this), and features music by Matt Gray (A good composer). I assume it's ok to post this, since the game was cracked in 1990, and I doubt anyone is actually making new copies of C64 games, lol.
http://pirates.emucamp.com/a/k/klax/c64/main4.html
