Tutorial levels (9 levels)

A series of easy levels that introduce incrementally the items and physics of the game.


	Underground (6 levels)

Varied levels requiring different playing techniques.


	Terrier (5 levels)

Varied levels showing different level design strategies.


	Balderdoush (20 levels)

These levels are adaptations of the levels from the 1994 Macintosh game Balderdoush.
They are locked against edition to preserve a challenging aspect of the original game:
To discover and play new levels, the player first has to find how to beat the previous ones.


	Difficult games (9 levels)

These levels have very unique and unexpected game mechanics. They are ordered by difficulty.
Half of them imitate other well-known games (Mario, Bomberman, Donkey Kong, Frogger, Pac Man).


	Freefalls (1 level)

One very tough level.
Avoiding all the falling items is easy, collecting every diamond is not.