A very interesting and fun platformer game. I like the use of constast black and white color, and the interesting mechanic of the portal. The bunny looks cute.
However, I also want to point out a few things.
1/ Control: The bunny feels a bit off here there, the run is stiff, but jumping and turning is a bit floaty, making the character feel a bit inconsistence.
2/ Animation: There aren't much animation for when things are happening (most importantly, the portal)
Since the portal is the central part of the game, it would be nice if there are more juice to it.
Overall, a fun and solid game. 8/10
Ideas: 8.5/10
-Fun: 8/10
-Potential: 9/10
(Unique: 7.5/10)
Excution: 7.5/10
-Game Feel / Polish: 6/10
-Game Flow / Diffculty: 9/10