Your objective, as a pillowy square in a graph-work maze, is to reach the "X". You only need press the [arrow] keys to get there, but your path is complicated, naturally, by a whole lot of doors. Shove them closed from one side; open them by going the other way.
Your progress saves automatically, and if you are a completest, you'll come to appreciate that. There are two separate medals to collect for time used and steps taken on each of the game's 36 levels. The difficulty caters to both puzzle-heads and more casual travelers. It's not too hard to beat the game (not all that easy, either), but collecting all the golds, especially for the time-based medals, will mess you up.