Wouldn't it be awesome to have a "battle" or "vs" game where you could be a hero and fight against other heroes (or enemies)?
It would be played with the keyboard and 2 players may fight each other:
Player 1: W/A/S/D - movement
F - standard attack
G, H - abilities
Player 2: arrow keys - movement
Num 1 - standard attack
Num 2, 3 - abilities
Or something like this ... What do you think?