As I write this I admit that the unicycle from Uniracers would have no chance of coming as a player character in the Super Smash Bros. series and it's a matter of fact that Pixar had sued because they felt that since they were the first to make a live unicycle on a computer only they had the right to make while in fact Pixar's live unicycle was different than the live unicycle from Uniracers, I believe that anyone had the right to use a live unicycle as a protagonist. But if Pixar hadn't sued and the living unicycle from Uniracers existed as a player character in the Super Smash Bros. series, it would be original to have a fighter be a living object, but it's a question of what its moves and its Final Smash would be based on. However, as player characters in the Super Smash Bros. series, we have humans, animals, fantastic creatures, monsters, aliens, robots, mutants, angels, etc., but we definitely don't have a living object like the unicycle from Uniracers.