Mike writes, "The sweet spot of game design is being able to tap into that part of the brain where instant gratification meets compulsion to push forward. It is this simple, yet delicate, balance that is right in the wheelhouse of puzzle games, particularly those on mobile devices. Games with easy-to-pick-up mechanics like Bejeweled, Peggle, or even Tetris are accessible to anyone, but provide endless challenge and replayability once they get you hooked.
Bejeweled in particular is an example of a 'Match Three' game, in which the player must do just that; match three of a particular color/shape/whatever to progress. Have you ever wondered what would happen if somebody took that basic premise and wrapped it up in a JRPG coating? Well, wonder no more because here comes Dungeon Hearts, a cool idea for an iOS game... except I played it on PC."