"Connect 4" type game where the object is to get a line of 4 in any direction. The game can be played against the computer or against another person. The game contains a a large playing grid and there are 4 levels of computer skill with one level played against the clock. Slot 4 requires the "Waba Virtual Machine" version 1.0 beta 8 or later, available for free at www.wabasoft.com. Source code for Slot 4 is available on my Web Page.