Liked the game premise of having limited ammo (can't miss used any of it), just the crouch tip would had been nice from the start XD. That 2nd jump saw me die many times.
The art was nice but the character color blends with the background making it a bit more hard to do some jumps.
Music was great.
For the enemies: launching the spear would had been a nice addition so you were forced to use crouch and learn about it before the 2nd jump.
Edit: For the jump maybe it would had been easier to put it on space also.
You can check my game jam entry out at: https://itch.io/jam/heartjam/rate/237826