Roller Balls are great for games!
Microsoft Trackball Explorer - not only with the steadiness of a Roller Ball but two extra easy to click buttons for Jumping and Ducking; or for gun toggling/changing, or for anything! A classic tool for Web Browsing Programming or Gaming.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.