Towerfall: Ascension

Towerfall: Ascension is a fun side-scrolling multiplayer action platformer where you take on the role of archers who hate each other very much and fight on a variety of maps for their honor. Enemies die in almost one shot; they can also be crushed by jumping on their heads. For each kill you are given a shard, and after a certain number of rounds, whoever has the most wins. The arrows are not endless, but you can collect those that did not hit your enemies (even if they are strangers).