Nickelodeon Super Hero Brawl 4

Check out Super Brawl 4, Nickelodeon's newest free online fighting game
 Choose SpongeBob SquarePants' Sponge Out of Water super hero, Invincibubble
 In Super hero brawl 4 all the characters are super heroes. This is the first Super Brawl game in html5

gameplay
The game is played by using the arrow keys to move, and double tapping the forward arrow to dash. The spacebar is used to attack your opponent. when the super bar is full, press Z to activate a special attack to do more damage. Keep attacking your opponent until the health meter reaches zero. At the end of the round, repeatedly press Z to constantly attack your opponent. (This attack has unique ways of being performed so some variations may need the arrow keys) After a short time, your opponent is knocked off the screen and you win. In Story Mode, win two rounds to move on to the next opponent. After beating all the opponents you will have to defeat the final boss, Tiger Claw, to win the game. The game ends immediately if your opponent wins the match.

Characters: Sky Whale, SpongeBob SquarePants, Patrick Star, Sanjay & Craig, Leonardo, Michaelangelo, Donatello, Raphael, Red ranger, Pink ranger, SwaySway & Buhdeuce, Harvey Beaks, Korra, Banana, Sheldon Plankton, Goat, Henry Hart and Timmy Turner.