Virtual Boy Wario Land

Virtual Boy Wario Land, known in Japan as Virtual Boy Wario Land: Awazon no Hihō (バーチャルボーイワリオランド アワゾンの秘宝, lit. "Virtual Boy Wario Land: Secret Treasure of the Awazon) is a video game released by Nintendo for the Virtual Boy in 1995. It is the second installment in the Wario Land series.

Story
The game begins with Wario landing his Bulldog airplane in the middle of the Awazon River's basin for some relaxation time. The vacation comes to an end however when he spots three Mask-Guys heading behind one of the Awazon's waterfalls carrying treasure. Interested in claiming the treasure for himself, Wario follows the trio into their secret cavern, but is soon surprised by a trap door which plunges him into the underground chasms below. Now caught in a deep underground labyrinth, Wario swears to seek out his revenge and claim the treasure from the Mask-Guys.

Trivia

 * This game was originally titled Wario Cruise.
 * A Sticker of Small Wario under the more recent name of Tiny Wario appears in Super Smash Bros. Brawl, which makes Virtual Boy Wario Land the only Wario Land game that is also mentioned by name outside of the Chronicle in Brawl.
 * Once Wario is in his normal form, subsequent forms (such as Bull Wario or Sea Dragon Wario) only appear to change Wario's helmet, as opposed to his whole body, which is common in the more recent games.