A very nice game! Controls are very smooth, levels feel perfectly tuned. A few suggestions:
- The rewind feels very slow - you don’t have anything to do while the player is returning back to start, and it is also somewhat depressing looking at your progress being destroyed. Maybe just make it several times faster, so that the player doesn’t have to wait that long and can retry as soon as possible?
- Besides helping the player with the keys he needs to press (which is a cool replacement for a tutorial, btw), add some arrows or smth to designate what the player is supposed to do? On the first level I was really confused at first since the exit portal looked hostile and I tried to avoid it. An arrow pointing to it would probably help.
- On the 6th (or somewhere nearby) level the player has to jump higher than the visible area. Regardless whether this is intended or not, it feels somewhat confusing.
- Levels 7-8 seems to have been skipped - after the 6th I was put straight into the 9th.
Nonetheless, the game is very enjoyable, great job!
(btw try & rate mine if you like shooters)