Use the keyboard A, W, D, S or arrow keys Left, Up, Right, Down, and mouse button - if the game description "Player Killers' Exchange" is not stated otherwise.
Player Killers’ Exchange
Description: Player Killers' Exchange is retro dungeon-like game. You are playing a skeleton guy, who would kill orcs and lizard as many as you can to get equipment and blood supply. You need to defeat your opponents to win the first place on the score rank. It's a little hard on the beginning, once you've mastered the basics of combat, you will be the greatest knight.