An early-80s Atari classic that is celebrated as much for its beautiful MC Escher-esque cabinet art as for the game itself, *Crystal Castles* is a somewhat surreal take on Pac-Man-style "eat the dots" gameplay, within a series of three-dimensional castles filled with fantasy baddies. Players control Bentley Bear, whose insatiable greed compels him to pick up all the gems from every level, evading sentient crystal balls, aggressive trees, swarms of bees and a flying witch along the way. The game's trackball controls added a level of novelty common to several Atari games of the era, while the levels (rendered using a technique known as trimetric projection, says Wikipedia) feature 3D twists and platforms that require quick thinking and dexterity to navigate quickly.