The glory day Add-on for Groove Coaster has 6 achievements.
Play glory day 20 times
Play glory day and clear all of SIMPLE, NORMAL and HARD
Play glory day and get A Rank in SIMPLE, NORMAL and HARD
Play glory day and get S Rank in SIMPLE, NORMAL and HARD
Play glory day and get S+ Rank in SIMPLE, NORMAL and HARD
Play glory day and get S++ Rank in SIMPLE, NORMAL and HARD