Adventure Mode: The Subspace Emissary (Cartoon + Anime: The World Heroes Unite)

Adventure Mode: The Subspace Emissary (亜空の使者, Emissary of Subspace), sometimes abbreviated as SSE or shortened to Subspace Emissary, is a mode in Cartoon + Anime: The World Heroes Unite similar to Super Smash Bros. Brawl, but gigantic update with all characters multiverse (of cartoon and anime).