The Dream Coaster Add-on for Groove Coaster has 10 achievements.
Play Dream Coaster 20 times
Play Dream Coaster and clear all of SIMPLE, NORMAL and HARD
Play Dream Coaster and get A Rank in SIMPLE, NORMAL and HARD
Play Dream Coaster and get S Rank in SIMPLE, NORMAL and HARD
Play Dream Coaster and get S+ Rank in SIMPLE, NORMAL and HARD
Play Dream Coaster and get S++ Rank in SIMPLE, NORMAL and HARD
Play Dream Coaster and get A Rank in EXTRA
Play Dream Coaster and get S Rank in EXTRA
Play Dream Coaster and get S+ Rank in EXTRA
Play Dream Coaster and get S++ Rank in EXTRA