'''''Non possum mori''''' <ref>speedystoneball's term</ref> (Latin for "(I) can't die") , also known as '''stuck ball''' or '''Stuck balltrap'''<ref>Dilant' s term</ref> is a softlock where the player is unable to make progress because the ball is stuck and can neither die nor complete the section. ''Non possum mori'' can only be removed by restarting the level or installing a [[suicider]].