At 1st I had fun but after a few tries in the second level, I would like that there was an actual threat during the level, once you get your 2 red power ups and the 2 missile one, you ran out of motives to shoot until the end before the boss, which can feel a little boring to wait to reach the boss again
Trying the level again when you lose to the boss isn’t bad, so I wouldn’t suggest a checkpoint before the boss, just more active threats
Outside that, the game can be fun, I like the design of the skulls and I like that it’s clear what gives you power up after the 1st level, I didn’t like to pick the green weapon because I prefer to see 3 bullets than 1 single shot and for that it didn’t feel powerful haha
I also liked the visuals, good boss, but I would like 1 more attack pattern, the sfx and the mood of the game is nice
The game crashed just after I kill the boss which was funny but I take that as my victory :)