Rigby's high school nemesis returns and threatens to ruin his chances at passing gym class and graduating high school. false 2026-09-23 00:59:52 7 2016 TV-PG tt5641990 5541008 11 Action Adventure Animation I:\Media\Shows\Regular Show (2010) [imdbid-tt1710308]\Season 07\Regular Show (2010) S07E21 Gymblonski-thumb.jpg Regular Show 21 7 2016-03-19