Lemme break this down better, so you have an idea of what is going on
Golden Sun -
Banjo-Kazooie - A wiki is being considered
Custom Robo -
Chibi-Robo - There is a wikkii
Touch! Generations - This may come soon
Sin & Punishment -
Stafy - A wiki has already been mentioned
Excitebike -
Ice Climbers -
Fire Emblem - There was a FE Wiki somewhere around
Kid Icarus - There was a wiki that was just starting
Punch-Out! -
Tetris -
Wario - Currently covered by MW, but a Wario Wiki may join if it is found and applicable
Yoshi - Same
Game & Watch
Professor Layton
Gyromite
Brain Age
Art Style
Brain Age
Wave Race
Big Brain Academy
Magical Starsign
F-Zero - F-zero WIkia
Puzzle League
Animal Crossing - We have one
Mario Kart - MW
Mario Party - MW
2nd and 3rd party games
the other ones I missed
For most of them, you may see some stuff in the future. Near future