# of People who can Play at once

[Tennis=Life]

Is it 7? Or just for that type of battle.

 

[Zero_13]

Probably just that type of battle.

 

[Bulerias]

It's just the multi-man melee. In SSBM, you could only do it solo, and with 5 opponents. Here, there's the co-op option, same number of opponents... so yeah, 7 in multi-man melee, but not anywhere else.