TMI for a 5.5 rated title. 3d isn't impressive, gyro hardly works, special moves are overpowered, online with a buddy can be fun, and the backstory sucks. That is all that needed to be said.
Barely anything looks to have changed from the N64 days. I doubt they care what I think though - newcomers (which is Nintendo's bread and butter) to gaming don't really buy old systems/titles to notice.