Avengers vs Sonic the Hedgehog?

Nightcrawler's Hyper Moves

X-Men’s Iceman Takes on the Hydra

Beast and Iceman Fight Spider-Man Villain Trapster

I think I already saw this somewhere...

Eye of Agamotto and more

New char: Kurama, from Yu Yu Hakusho

Guess the character!

Escape from Dark Dimension - Power Rangers It's Morphin Time

Sprite base: Big Putty