This song is really good! I'm quite impressed by both the quality of the instruments and the quality of the composition. It might just be me, but some parts seem like they would fit in a Ratchet and Clank game...
The only thing I'm not sure about is the constant "thump" in the background. It works well for most of the piece but some areas (like around 2:10) it seems out of place. Everything else has gone quiet but the beat keeps blasting like some over-encougage bass drum player!
Otherwise, very good job Nixdorux, you have created a mix worthy of the OCR title!