To prevent themselves from stealing too many points from other players, some players choose to "freeze" their current skill level. Potentially useful abilities may have been lost upon death, and the system may not be sophisticated enough to restore super mario bros
them. Instead, the ability to lock a door securely. A player's Max level is up for grabs. Even if a character loses experience points due to death, that knowledge may be restored by training and brought up to its previous level.