Namco vs Capcom vs Sega

Ryu

Super burst: Evil Ryu (Transformation)

Guile

Super burst: Sonic Hurricane

Zangief

Super burst: Siberian Blizzard

Megaman

Super burst: Super adapter (Transformation)

Zero

Super burst: Absolute Zero (Transformation)

Dante

Super burst: Devil trigger (Transformation)

Vergle

Super burst: Devil trigger? (Transformation)

Shantae

Super burst: Harpy (Transformation)

Risky Boots

Super burst: Summons Tinkerbats to attack the opponent.

Edward Falcon

Super burst: Transformed (Transformation)

Rouge

Super burst: Transformed (Transformation)

Ryu Bateson

Super burst: Kaiser

Karn

Super burst: Puka (Transformation)

Jin

Super burst: Devil Jin (Transformation)

Heihachi

Super burst: His skin turns red (Transformation)

King

Super burst: Muscle Buster

Pac-man

Super burst: Pac-man eats a Power pellet, the opponent turns blue, Pac-man eats the opponent, spits out their eyes, and the opponent returns back to normal.

Blinky

Super burst: Merge with Kinky (Transformation)

Segfried

Super burst: Soul embrace

Mitsurugi

Super burst: Demon Slayer

Cless

Super burst: Chaos Lunge

Lloyd

Super burst: Falcon's Crest

Kolona

Super burst: Dive Suit (Transformation?)

Guntz

Super burst: Shinigami Rush

Kosmos

Super burst: Shoots a giant energy beam.

T-elos

Super burst: Shoots a giant energy beam and uses it as a melee weapon.

Akira

Super burst: Shouten Housui

Jacky

Super burst: Attacks the opponent with a forklift

Kage-Maru

Super burst: Amatsukitsune

Sonic

Super burst: Super Sonic (Transformation)

Emeril

Super burst: Transforms into Perfect Chaos's head with Chaos 6's limbs and tail and shoots an energy beam from it's mouth.

Sakura

Super burst: Enters her mecha and performs a melee attack.

Gemini

Super burst: Enters her mecha and performs a range attack.

Bayonetta

Super burst: Throws galaxy like disks.

Jeanne

Super burst: Rams into the enemy with a motorcycle.

Nights

Super burst: Transforms into a dragon and attacks the opponent.

Rella

Super burst:

Super burst: Transforms into a dragon and squeezes the opponent.

Bowie

Super burst: Promotion (Transformation)

Kiwi

Super burst: Promotion (Transformation)

=Notes=

Dante and Virgle are from the Devil may cry remake: DMC.

Ryu Bateson is actually the Ryu from BoFI. The reason he has the last name of Ryu from BoFII is to differate him from Ryu from Street fighter.