Smash Bros. has seen many kinds of modes in its 15 year history. Smash Run is coming to the 3DS version only, and it’s an interesting concept. Four plays play through a little brawling dungeon-crawler with a five minute time-limit. The goal is to get as strong as possible here before it ends and then all four players go into battle. The dungeons will feature the same layout, but enemy placement will be random, so every play session will be different. This is quite an exciting mode, and will see you battle both AI and online foes while going through the mode. Nintendo is certainly going all-out to make sure that even if the game doesn’t sell Wii U systems, it will do landmark numbers on the 3DS.