Very fun and challenging, The music and soundtrack are good. for Metroidvania level designs are good.
+ I can skip some upgrades like a missile and finish the game, which is very good.
+ cool enemy/boss mechanic and design
+ nice little puzzle with rock and auto door
- Blue lasers trap is a bit too hard
- Camera is turning a bit too fast when the ship turning direction, maybe needs more smooth/damping
? Save point should maybe an autosave/checkpoint instead of pressing E to save.