About the ShrinkIt archive TunnelTerrorGS.SHK This is a GS/OS desktop application that also has the program src. code files included. ItŐs a nifty demo example of using animation cycling with a multi-function changing orb shape inside of a layered checker-form series of rings and circles using the colors; Red, Green and Blue. It displays the animated cycling form as an SHR screen. Most entertaining and fairly educational for new IIgs programmers desiring some understanding of the abilities this demo presents by reviewing the source codes of it.