co-op idea

[MikeSixer]

If you and your partner are certain characters that have a relationship of some kind. Let's say Sonic & Tails (Yes, I know tails isn't in brawl [Yet])  Sonic could grab onto his legs and fly around with him like he did in the original sonic games.  ;)

[bluaki]

Thing is, there's not much to build off of. Ice Climbers and Sonic are probably the only ones who have been co-op with another character in their own series. (and Ice Climbers won't work with this for obvious reasons) You don't really see Mario and Luigi together much, but with Sonic and Tails there is like 4 or 5 games where you play with both on screen at the same time (Sonic Genesis, Sonic 2, Sonic 3, easter egg in Sonic Advance, and probably some other game I forgot about).

[NYOXIC]

There aren't many characters that could do this though.  Other than that, it would be a good idea.