Maybe instead of saying what we should get rid of, lets name what we should keep. lol
In my opinion...
All his DigDug stuff
ChuChuRocket (Although he should be renamed to ChuChus)
Hello Kitty (Although the skin could be brighter)
All of Link901's stuff
MarioMan64's Waddle Doo (Unless we get a better Waddle Doo skin)
All of Peardian's stuff
All of Sgraff's stuff
All of -Super Wario-'s stuff
Crab (Should be renamed to SideStepper)
Ice Hockey Medium
All of Xjar's stuff
All of ym7's stuff except for the Pikachu.
Unknown Author (Ones without an author name):
Flurry (PLEASE LEAVE HIM IN)