Fight in the arena against swarms of robots. Upgrade your weapons, armor, and skills to defeat them. Use mouse to move. Space bar to dash forward. Mouse click to attack. 1 to perform basic attack. 2-6 select a skill. 7 to use life potion. 8 to use energy potion. Z to open status window. X to open skills window. C to open item shop.Chiến đấu Trong Các đấu Trường Chống Lại Các đám Robot .