The original Super Mario Battles was created by a guy named Mike
P. It involved pitting two character against each other and you
would vote for the winner.
"Super Mario Battles - The Main Event" is basically the same thing, except with a twist.
Instead of just voting for a character, you will voting on various
stats in a "Tale of the Tape"-like comparison. Each stat, in
which the character wins the vote, is worth one point. The
character with the most points wins the battle.