=====My opinion=====
Super Mario's first 3D game, and also the first one for the N64. It's basic engine is also used in the famous Ocarina of Time, with changes, of course. The graphics are great, due to hardware capacity, wich Nintendo really knew how to use.

=====Storyline======
The storyline is the classic one, with some changes:
Peach invites Mario to have a cake (possibly with some "Hot Coffee", if you can understand me xD), when Mario reaches the castle, he discovers it was a Bowser's ambush, and that he kidnapped Peach (again!). Now Mario must use the power of the Stars to open the Castle's doors and find Bowser and Peach!

=====Gameplay======
The gameplay is great, Nintendo could take the classic SMB games to a #D pespective without much errors (except the fact that Mario punches, but...), almost every enemy from the earlier games are present, such as Goombas, Koopa, Bo-ombs, Ghosts, Pipe Piranhas. etc.

=====Soundtrack=====
The soundtrack has many of the earlier games' musics, possibly to make a "nostalgia" apperance.