Fish [Nuclear Throne]

Specials

Neutral - Revolver
He shoots his revolver doing 3% and can be shot pretty quickly

Left & Right - Roll
Essentially Mewtwo's up special but only left/right and has a rolling animation. Also damages enemies it touches.

Down - More ammo
Spawns a random item anywhere on the map. Has a mediocre-long cooldown.

Up - Water Boost
You can fly moderately fast indefinitely, but can't attack while flying and take +1% when hit (if hit)

Smash - Fish Can Roll
You get really big and go to the left side of the map. You can go up and down but not right. After 2 seconds, you get launched across the screen doing 50% to the first person you hit and 10% less to each subsequent opponent hit. You get slower each time you run into someone.

Basic Attacks

Jab - Starts playing guitar and shoots out a sound-wave that does 10%

Forward Tilt - Rolls a short distance forward and back and does 5% each time it hits.

Up Tilt - Shoots a bullet into the air that does 5%

Down Tilt - Spawns a radiation can that blows up into radiation in a short distance damaging all nearby enemies for 4%

Taunt - He rolls in place inside a fishbowl.

I'm not good at balancing, so if anyone has anyone has any balancing suggestions, please put them in the comments.
PS. This is my first post

Who is this character
Why should he be added
What does Smash mean
Mewtwo's up special doesn't act anything like you described

I can see this is your first post. Absolutely no support whatsoever.