[Maine951]

I made a list of all the games showed and what were said under the year and title. Over all these are all the ones that had some type of caption to the title.

1992 Maize Craze: Inavgural Competition
1993 Rub Rage: Robots increase in size and go wireless
1996 Hexagon Havoc: Robot weight increase
1999 Double Trouble: Robot Alliances begin
2001 Diabolical Dynamics: Robots race against clock
2003 Stack Attack: Autonamous mode introduced
2005 Trupple Play: 3v3 Introduced
2009 Lunacy Primary field surface isn't carpet for first time since 1992
2013 Ultimate Ascent : Frame perimeter changes

The pattern is the sizes of the robots and the alliances.