This is my remix of two Tetris songs.
For the main sounds (gameboy style) I used Magical 8bit Plugin. For the bass I used Analog Warfare, the drums were provided by Fruityloops Drumsynth Live!, and the sound effects (tetris sounds and game over) were taken from a remix done by McVaffe of OcRemix, and from the actual game itself, respectively.
Songs are in this order -
Korobeiniki (really, that's the name of the song)
Troika (from the Soviet "Tengen" version. Also appears in the Japanese version).