Crossover Battle Royale

Crossover Battle Royale is a crossover fighting game (similar in concept to Super Smash Bros. but bigger in scale) developed and published by Arc System Works of Guilty Gear, BlazBlue, and Dragon Ball FighterZ fame.

Plot
One day, all of the crossover factions decided to host a tournament between their citizens to strengthen diplomatic ties, thus resulting in the first-ever annual "Cross Festival". Cue everyone (including their alternate counterparts if they appear in more than one crossover series) kicking the asses of one another.

Franchises Represented
We have so many franchises to list, so buckle up.

Why It Rocks

 * 1) The sprites for everyone are well-made.