There needs to be a Dynasty Warriors based around One Piece. Fuck, just take the moves available for characters already in the Grand Battle series and just apply them to a large-scale BEU. I would freakin' love taking a character around and beating up legions of pirate cronies or marines. Then they could make some kick-ass boss battles at the end of each level. The analogy applies even further when you realize most OP villains have at least 2 subordinates, allowing for sub-bosses to be scattered across the map.