Character properties are a feature in Mari0: SE that allows you to change the mechanics of a particular custom character. There are used by adding in the appropriate text ("property": true) anywhere in the character's conig.txt file.
There are three in total:
- Raccoon Mario: Functions like the powerup from Super Mario Bros. 3, having abilities such as flying, tail swinging, and falling slowly. "raccoonmario"
- Double Jump: Lets the character jump twice. "dbljmppls"
- Pegasus: Like double jump, only with infinite jumps. It was removed in beta 9. "pegasus"