Synergy Attack

"'Every character has a special variation of Character Assists called Synergy Attacks! These are activated when certain characters team up with specific assist characters. For example, Ben Tennyson's Synergy Attack begins when he activates an Assist Cube containing Fred Fredburger. You will know that the Synergy Attack has been initiated by seeing a special video sequence (similar to PTEs).' - Game Manual Description"

Synergy Attacks are special attacks performed when a certain fighter pick ups a certain assist character from a summon cube. This is a feature added in Cartoon Network: Punch Time Explosion XL.

Description
Synergy attacks are where a fighter and an assist character team up for a special attack. Some of them have the player take direct control over what happens, others trigger one big attack, and some have the assist character do something different from their usual function while the player continues to use their own character.

Pairings
The pairings for the synergy attacks are shown below.

Trivia

 * Dracula, Major Glory, Numbuh Two, and Vanhallen are the only assist characters that are part of more than one synergy attack.