Very Solid Sequel
From memory it seems a bit shorter, but that was probably because I had almost no problems running through this one.
The new powerups are the things that get to me. They're a very creative addition to the game. The length of the game (It was only what, 3 levels shorter anyways) is a very petty arguement over how much of a solid sequel it is.
The Yarn and Tongue powerups work a lot better than that Quake thing though, in most of the levels that was included in the cat would just get stuck almost directly above the powerup and get almost nothing.