Giant Hula Hoop
From Halopedia, the Halo wiki
Giant Hula Hoop is an achievement in Halo: The Master Chief Collection. It is unlocked by beating the 12,000 point par score on Halo in Halo: Combat Evolved. The achievement is worth 10 Gamerscore. Though it can theoretically be unlocked on any difficulty, more points are awarded in campaign scoring when playing on higher difficulties.