Good?

First of all, the way the gameplay was designed is not good. Its literally cancer. Invisible portals and a wave part with teleportals that also switches the side your on? No thanks. It is pretty annoying to play the level when it has that kinda gameplay.
I'd say redo the entire UFO/Wave parts gameplay and make it alot more fun to play.

And the transition from the wave to the square/default mode is pretty bad. I found myself dieing because waving made that square jump twice and die. Atleast add a marker, an indicator to show that "OK, NOW WE ARE SWITCHINHG GAMEMODES!" Ok?

And I'm not really a fan of slow modes either but I'll let it slide.
However one thing that wont slide is that there is an invisible spike right before you're going to the very end and ending the level, if you choose to change gravity with ball. Fix it.

5/10

Your effects and decorations are mind-blowing at first. Then it kinda goes down to the sea, when you realise it is mostly the same but different.

The color combinations are just one color at the screen at a time, sadly it wont go into Jeyzor's contest because grey is a color not allowed. ( ͡° ͜ʖ ͡°)
okno.

But the decorations, block designs are one of the most original I have ever seen. I like it, but its a little repetitive when you only see red, green, blue, yellow all the time.

It's fine. 8.3/10

Your level is pretty well synced but that is mostly it.
It's not like every jump is synced, its more like the background flashes and changes, getting teleported to under the ground and so on. Its not like perfect sync, its just decent.
7/10