Accumulate the indicated number of trophies by beating the goal score in a level to unlock the corresponding special level in the "X" tab of the level selection screen.

X-1: 10 trophies
X-2: 20 trophies
X-3: 30 trophies
X-4: 40 trophies
X-5: 50 trophies
X-6: 60 trophies
X-7: 70 trophies
X-8: 80 trophies
X-9: 90 trophies
X-10: 100 trophies