Crystal Castles (2600)

Crystal Castles stars Bently Bear as he runs through the Crystal Castles. The series only has 2 games, only one if they didn't change the level design in the 2600 version. The goal is to collect gems in an attempt to get out of the castle. There is 8 levels, with about 3 or 4 castles in them. The game made it into Atari's Greatest Hits with both the 2600 and Arcade game. The 2600 game has no real diagonal movement, but provides a great challenge. Bently is invincible when jumping, and can stun some enemies when jumped over.