I've never been good at reviewing remixes, so I'll just treat it as if it was a completely new song.
I really like the track at :12 (not sure what to call it). It just seems to add a lot of depth.
The part from :32 to 1:17 got really repetitive and half of it could easily be removed to make it sound a bit less boring. You shouldn't worry about making your songs long, keeping songs interesting is much more important,
The track at 1:17 sounds... oddly inspiring in a way. Not a bad thing, just something I noticed.
I really like the basslines in this track, you did a good job with that :)
The part at 2:09 was a bit of a letdown, mainly because you went from about 4 instruments down to 1, and the contrast really makes it seem a bit empty. As a general rule of thumb, I almost never let one instrument play by itself.
The drums at 2:22 start one beat late, as well as the change to snares. Also, the rapid-snares kind of shatter the mood of the song.
2:37 I really liked. I can't put my finger on it, but there's this one instrument in the background that gave the song a real sense of depth. Also, the rapid-snares sounded much better here.
I like the ambience at 3:02, but the sudden, sharp notes kind of disrupt that.
3:32 That piano section seems a bit out of place, because a) it doesn't fit with the theme of the song and b) It goes completely out of tempo with the rest of the song. In fact, that entire last section probably should have been cut. The filter doesn't fit with the song and seems boring compared to the rest of the energetic song.
Since I'm in the mood for a ProJared-esque review, I'll give one.
I give this song a Bag of Jelly Beans out of Ten. It has some really tasty parts, but there's always those few Jelly Beans you don't like and would have preferred stayed in the store.
But since NewGrounds won't accept that, I'll give it a 4.