Transormation by: Tyruktion (my alt account)

So, lets jump right into it

The gameplay honestly wasnt the best, the main flaw was that there was a large portion wher eyou didnt have to do anything. The first flying section was semi-automatic (you anly had to do three presses), after the wave was a very long black screen, and there were some fly and ufo sections later in the level where you just had to make sure not to hit the ceiling or floor. Another flaw I had with the gameplay was that there were quite some objects appearing right before you got to them, which cuts down your reactiontime by alot and that is a bit annoying. You had some nice gameplay that wasnt repetitive and fun to play at the 'mesy sections' (as you called them ), and the jumps were all well synced to the music, that was good.

The design was a bit plain. You used a two custom backgrounds, of which the first was dynamic and used pulses (which is good), and of which the second one was very plain, but besides that there was almost no decoration. The first flying part consisted of just black blocks pulsing the music, the wave part was just a huge chunk of colorchanging blocks with no detail, the cube/robot also just consisted of pillars and spikes which both werent decorated. I suggest putting more foreground detail/get a more detailed block design in later levels. It can also help to no make the wave for example one big chunk of slopes, but to work with different shapes (like the first (First! not the famous one) wave in decode, if you know how that one looks. It is simple in terms of decoration, but the shapes still make it look cool. It also improves gameplay.
As for the 'messy part', that was actually a bit better, it indeed didnt fit the smooth style of your level, but it was better decorated and didnt feel as empty as the rest of the level.
Another flaw with the design might have been that there wasnt alot of color involved, which makes it seem a bit monotonous.
There were some pulses (synced to the music) you used though, which is a really good thing because it makes the level seem a bit more alive.

With all the (small) flaws, I think this belongs to decent. The basics are in you, but you need still need to execute things just a bit better. I hope this review helped for your future levels.