Chaos Faction 2 may lack the nostalgia of Nintendo's cast of well-loved characters, but it compensates by being, well... free to play.
Pick a big-headed kid who looks like a school bully and jump into an arena to beat the crap out of a few other players. Like Smash Bros., there's loads to unlock along the way, including more big-headed kids who look like school bullies and a vast arsenal of weapons.
It's as shallow as a reality TV star, but will deliver enough entertaining cartoon violence to keep you occupied this lunchtime.
Chaos Faction 2 [Kongregate]