The Don’t Die Add-on for Groove Coaster has 6 achievements.
Play Don’t Die 20 times
Play Don’t Die and clear all of SIMPLE, NORMAL and HARD
Play Don’t Die and get A Rank in SIMPLE, NORMAL and HARD
Play Don’t Die and get S Rank in SIMPLE, NORMAL and HARD
Play Don’t Die and get S+ Rank in SIMPLE, NORMAL and HARD
Play Don’t Die and get S++ Rank in SIMPLE, NORMAL and HARD