Complete the following goals to unlock the corresponding Gallery

Gallery 1 to 10:
Complete puzzle mode levels 1 through 10.

Gallery 11:
Select trial mode, then get into the score ranking in endless mode.

Gallery 12:
Select trial mode, then get into the level ranking in endless mode.

Gallery 13:
Select trial mode, then get into the score ranking in time limited mode.

Gallery 14:
Select trial mode, then get into the max chain number ranking in time limited mode.

Gallery 15:
Select trial mode, then get into the max chain score ran conqueror's continent in time limited mode.