Oh crap, was I dying this whole time? The end was kind of a shocking reveal lol!
The main mechanic of seeing portal through enemies is fun!
I liked the art, it feels pretty, cute, and cohesive.
The music and sound matched the art and gameplay pretty well!
In terms of feedback:
Sometimes I would just walk around impatiently until I found the portal before the enemies passed over it, resulting in me getting some pretty quick levels that felt kind of lucky!
I felt like the button level could've been communicated a bit better. Since most enemies are colored shapes, I expected this colored shape to also be bad. I ran for a bit around in the first level that introduced them before I decided to risk it by touching it. Maybe it could have a different sprite or something!
In terms of the music, I think it fits pretty well, but it feels a bit distracting when the loop is ending because the fade out is a bit pronounced. To fix this, if you got the file from somewhere else, you could search "How to create a seamless ambient loop" in Youtube to see a more detailed explanation. If you made the music yourself, you could just print/bounce export the file with the final reverberation tail, import it again in your DAW, then cut the final reverb tail, put it in a separate track, and put it at the start of the file. This way, when you loop it it'll be seamless, since the final part will match exactly with the audio tail while continuing to play the main part.
Very cool concept and entry, keep up the good work!