Sees title screen... I love this game already.
Anyway, I love the mechanics in this game. The fact that every bullet can hurt everyone is interesting. If only every enemies can shoot bullet then I can do a pacifist route in this game. I also beat the game on easy mode and hard mode.
On the easy mode, I spam shot before seeing the instruction and made the game a lot harder. Well, I love to see my bullet hell filled with bullets though so this is not a complaint. Instead, it become the most thing I loved in this game. I can adjust the difficulty of the game by how spamy I shoot the bullet.
On the hard mode I already know what I'm doing and planned my power ups. But it seems at the boss stage, the boss get defeated by their own bullet. I'm not really sure but on the hard mode boss stage I too focused on dodging and rarely shot but the boss suddenly change phase/die on their own.
I still have one criticism though, the healing bullet should have a different visual/audio effect when the player was hit by it. In this build I can't really differentiate between being hit by damaging bullet or healing bullet if I didn't see the bulled beforehand.
That being said, good job with the game! I have fun playing it!