Complete one of 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.