The first stage, The Village, introduces you to the game play and how to solve the puzzles, i.e. how to move around and finding the right order. Collect hearts (gives you extra lives) and potions (avoid dying on deadly skulls) in later levels and pick up the clock if you're running out of time.
TIP: From time to time, you might need help from other creatures to solve the puzzle. You can even awake already banned creatures if you need them.
With every next stage, the game introduces up to seven new creature types and obstacles like arrows (redirect your creature in a given way), bumpers (pushes the creature back), portals ("teleports" the creature of that color between portals), blocker stones (can be only removed by creatures of that color), keys ("unlocks" a locked pentagram of that color) and deadly skulls that kill your creature (this will cost you a life if you don't have collected the potions and pushes the creature back to start).
 "Castle Keeper"){kind=icon}