The Batman 75th Pack Add-on for LEGO Batman 3: Beyond Gotham (Xbox 360) has 5 achievements worth 50 gamerscore.
Complete Batman's special Anniversary Dance Puzzle as Batman (1966)
Complete Batman 75 level with all Minikits unlocked
Complete Batman 75 level after achieving True Hero status
Complete Batman 75 level
Set both Free Play characters as Batman (Sinestro Corps) and Vampire Batman