InkBall

InkBall is a puzzle game that was first introduced with Windows XP Tablet PC Edition 2005 and was later ported to Desktop PC's in Windows Vista. It was also included in Windows Longhorn build 3713. It was discontinued with the release of Windows 7 and later versions of Microsoft Windows.

It can be played with either an ordinary computer mouse or a stylus. The ability to play with the former was introduced in Windows Vista. In Tablet PC edition, you are able to use the mouse, but it will disappear in the game window.