Bubble Splash
You must defeat Bubble Crab to obtain this weapon. Shoots up a bubble, and, when this weapon is fully charged, creates a shield that consumes weapon energy each time and allows you to jump higher (underwater only).
Crystal Hunter
You must defeat Crystal Snail to obtain this weapon. Freezes any enemy that comes into contact with it. Also, when fully charged, it slows down time for a short period of time; useful for when you have to wall jump while the walls are closing in on you.
Magnet Mine
You must defeat Magna Centipede to obtain this weapon. Fires a low-explosive mine.
Silk Shot
You must defeat Morph Moth to obtain this weapon. Fires a sparkly shot.
Sonic Slicer
You must defeat Overdrive Ostrich to obtain this weapon. This weapon shoots a supersonic wave that bounces off walls and, when charged, shoots 5 waves from the ceiling.
Speed Burner
You must defeat Flame Stag to obtain this weapon. Shoots a small fireball. Also, when this weapon is charged up, you can air-dash to the left or right. The charged shot counts as a separate dash, so it can stack with air-dash or a dash jump. For example, you can jump (or dash-jump), then air-dash, then release the charged Burner to get a total of two air-dashes.
Spin Wheel
You must defeat Wheel Gator to obtain this weapon. This weapon is similar to Rolling Shield (R. Shield) in Mega Man X game, but this weapon can cut weak platforms.
Strike Chain
You must defeat Wire Sponge to obtain this weapon. This weapon can pull you to any wall you aim at and can take items.