SuperSmash: Physics Battle mods
SuperSmash: Physics Battle swamp mods
Everything filed under swamp by its own author, ordered by how much it is used.
1 swamp mods, most downloaded first · newest update 26 Mar 2022
Only one so far. It has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.

