The puzzles are hard, that's a good side of the game. The other side is, I'm not sure if it's my personal irk or just it is like that in general, I don't feel like puzzles and platformers (with timings as close as this) really go together. I did manage to beat the full game (is there a reason to collect time crystal if the end is in the other direction?), but as the time went on, it started being less of a puzzle game and more of a rage platformer.
As the other comment said as well, there are some issues, like being unable to cancel a shooting action, or shooting line prediction being unreliable in tight spaces, but overall it wasn't that bad.
In the last level, I had to spawn an enemy moving left, and wait for like half a minute for it to reach the red button at the bottom so that I could open the red door. After that there was a whole section I had to go through with floating blue spikes, which made it easy to die and then I had to reset all over again, wasting a lot of time in that place.
TLDR: The puzzle aspect of the game is nice, with some polish (add canceling and fix prediction) it would be even better, but it seems that platformers + puzzles are just not my cup of tea. Still, a very good submission to the jam!