-Cute little distorted synths and nice instruments.
-Explosion at about 1:04 is pretty cool, to be honest.
-I love the "vamping-up" sound at about 1:36, as well as the one at about 1:54.
-The kick is a tad overly loud.
-I'm not a fan of using direct samples from another song, though how you used it isn't too bad.
-Crossfade using the vocal samples at about 0:45 is not well-executed and sounds awkward.
-The mix seems as if it's only barely holding itself together and is on the verge of exploding into major distortion. I know that Reason is good at handling a lot of sound automatically, but you shouldn't rely on it.
-After 1:54, it just gets to be a bit too crazy and the mix is overfilled. Then it just ends without any preparation.
Overall: Score of 7/10. Major problems are the transitions and the extremely overfilled mix.