I'm currently creating a 2D MMO with a top-down perspective in which players can shoot other players. I'm looking for advice on the control scheme for shooting and also for other commands. To move to a location, the player simply clicks that location on the screen or on the mini-map. For shooting, I currently have it where when the player clicks on another player it pops up a context menu where there are options for shooting, chatting, trading, etc. This is fine for chatting and trading, but for shooting it feels a bit clunky. I've tried double clicking to shoot and single click for the context menu as well, but it is sometimes hard to double click when the other player you are trying to shoot is moving at a decent pace. I've also tried single clicking to shoot and right-clicking to bring up the context menu which seems somewhat intuitive, but I didn't know if right-click was standard for Mac games (which I hope to port to when I'm done). Any advice? Note: I will have keyboard shortcuts for almost all commands, but at this point I'm concentrating on the mouse interface.