First of all, the player focussed camera does not get along with the bomber-man type games, instead the camera should show the whole stadium at all times. Because of short ranged player focussed camera it's impossible to see the bombs below you.

Secondly, the number of players seems to be a bit to much, in my opinion, the players should be able to control how many players you want from 2~8 people. In order to alter the number of players you want there should be a "rooms" where the leader (the one who created a "room") can close available spots, kick people out, and start the battle (of course all three can only happen before the match starts).

the "rooms" are made at the King Krogmo’s Coliseum window/screen (not by moving into another area or place, i.e. no loading) and players should be able to see a list of all the rooms with titles, which the leader is required to fill, and number of people currently "in" that room.

With all the room system, also there should be 1 more ways to join a game along with the current choices (random free-for-all, random team, guild play). Player should be able to select which rooms to join by looking at the "list" I mentioned above.

P.S. if there is any grammatical error please just ignore