Jack Bros.

Jack Bros. is one of the 14 Virtual Boy games to be released in North America in 1995. It is the rarest Virtual Boy game and can go for over $380 for the cartridge alone. When complete, the value can exceed $800 in some cases.

Gameplay
The player can choose between three characters: Jack Frost, Jack Lantern and Jack The Ripper, all with unique traits and stats. Jack Bros. plays a lot like Gauntlet, as it shares the same style of gameplay and overhead view. The only 3-D element the Virtual Boy uses is when you drop to a lower platform.

Although obscure, the game has received mixed to favorable reviews, though it was criticized for not using the virtual reality element in any way.