As I said earlier I avoided as much Brawl news as I could in order to play the game without expectations ... I did hear about Subspace Emissary but I assumed that it was just a more fleshed out version of the Adventure mode. All in all, I'm very pleased with it; but I also wasn't expecting a platformer.
Adventure modes (for the most part) are ways to learn about and become more skilled with a variety of fighters without the need to go through a repetative grind of beating the boss 1000 times; in most fighters they're simply fight sequences in the exact same stages from the core game with text or cutscenes that produce the story. The Subspace Emissary does include some platforming elements, has some of the best presentation, and is very varied which (in my opinion) makes it one of the best adventure modes ever created.
Certainly, it would be awsome if Nintendo would create a Super Smash Bros: Platformer but I don't think that is what the Subspace Emissary was supposed to be ...
