The game modes available in the demo are multiplayer only. A controller is required for each additional player, and one can use the keyboard. The full game will have additional game modes that support a single player with either type of device.
好吧！那真遗憾，我没有其他控制器来让我玩这个游戏。
Hey there! I’ve released a new version of the demo that includes a single player mode if you want to try it out without needing a controller.
