This is a troll game I released in February 2006 (now reposted on CW for posterity) that was intended to poke fun at the lack of originality on ticalc.org way back in 2002-06, especially in the TI-83 Plus BASIC Games section. This is basically yet another guessing game, but pushed to the extreme (uses grayscale graphics and requires over 22 KB of memory due to requiring xLIB).
(https://img.ourl.ca/grayguess.gif)
A grayscale quadratic solver (http://www.ticalc.org/archives/files/fileinfo/385/38543.html), also using xLIB and notorious for being exactly the 100th quadratic solver upload on ticalc.org and being exempt from the quadratic solver ban that was active at the time, was made shortly afterwards in response to this game, and a satire TI forum called the Quadratic Solver Liberation Front (http://z12.invisionfree.com/qslf/)was made alongside it.