DESCRIPTION:
Microsoft Russian Square Plus! Edition is a rare puzzle game only available with the (now defunct) Plus! Pack for Windows XP. The game play wasn't anything special, but the music was very impressive: the game included 3 music tracks of different styles, each of which developed and became more complex the farther through the game you got, culminating to a rather intense ending.

Here is the default soundtrack, "SpinCycle", a sort of gritty fusion of techno and rap. I was annoyed by this track at first, but it really grew on me over time. I like how over-the-top EXTREME it sounds.