In the game, you can control the mouse you play as.
Note that for the controls to work, the chat must not be highlighted (the cursor be in it).
You can also do special actions by entering chat commands into the chat box.

Key	Description	Notes
← or A	Move left
→ or D	Move right
↑ or W	Move up
↓ or S	Move down
1, 2, 3	Activate Skill	Each will will activate the corresponding skill on a player's skill bar, starting from the left.
↵ Enter	Bring chat to focus	Brings the chat text box into focus (instead of having to click it). Pressing ↵ Enter while in the chat-box will send the message / chat command, and then change the focus back to the game (or if empty will simply change focus back to game).
Esc	Open Menu	Opens the menu (with settings and exit options).
Control+I(twice)	Show FPS	This toggles on / off the number/ chart showing the game's FPS.
⇧ Shift+P	Toggle Interface	Hide / show the interface - desirable for clean screenshots.

Chat commands

Chat commands can be entered into the chatbox in-game. Any time a backslash /starts off a message, that message will not be visible to other mice.