Thanks for playing ! It's ok there's no reason to feel bad, cause honestly the enemies have basically instant reaction time since i couldn't find a way to delay them a bit during the jam's time frame, and on playtesting i had a hard time completing the final level since i couldn't find a way to balance it properly either, but i tried my best to have the game neither too hard or too easy, so that's cool that you thought difficulty was fair despite all the flaws :)
One thing to clarify cause that seems like another mistake on my part sorry, there is a way to go back to the level, the "restart" button i should have named retry instead (english not my native language so these errors could still happen :p) and this button doesn't restart the game but lets you restart on the level you were in, so in short, if you dont go back to the main menu you have unlimited continues to try the level you were in.
Glad you like the game anyway, i'll see how i can smoothen the controls a bit and improve the camera, thanks again for taking some time trying my game ^^