The Atari ST – being an Atari machine – was renowned for Atari arcade conversions and Crystal Castles was one of the best on the system.
While not considered one of the best arcade games, Crystal Castles nonetheless is a curious mix of Pac-Man and Congo Bongo with an interesting and unique control method ‘feel’. In arcades you used a trackball; here you use either a mouse of joystick.
Atari Games got the feel right when they ported this. Bentley Bear zips around speedily, as he should, and rarely puts a foot wrong. The controls feel precise.
Crystal Castles looks very close to the original too. And boasts 37 levels. Andromeda Software did a good job of the conversion for Atari.