I forgot to mention: Starting the levels in paused-mode (press space to start the level) would be nice since you could at least get the layout and position of opponents and most traps without the gameover screen in front of you. :D
Replay ability of puzzle games is hard and works only for some of the puzzels: You would need to keep the solution the same, but changing the pattern. Dull example: Instead of fireing from the right side, the opponents are fireing from the left side next time.
The game I would like you to try out is: https://hardgames.itch.io/babu
It's a Beta but I am already working on the final release.