Ice Caverns of the Crystal Yeti

Ice Caverns of the Crystal Yeti is an action-adventure game for the SNES, likely created in the latter half of 1993. The only known copies of the game are advance review copies; the game never reached market, as, the company which developed the game, went out of business before it could be shipped. It is often described as the sequel to Yeti Master, but appears to have had no connection to the older game; any actual connection remains unconfirmed. Nonetheless, there are a number of similarities between the two games.

Gameplay
Ice Caverns of the Crystal Yeti is an action-platform game, very similar to the Metroid and Castlevania series, with a focus on open-world exploration and item collection. The player controls a man ostensibly named Watts as he escapes from an underground facility, explores the nearby mountains, and eventually returns to the facility to destroy it. Over the course of the game, the player collects many power-ups that enhance Watts' capabilities and grant special abilities. At present, 27 distinct power-ups have been recorded, with space on the inventory screen for at least 35.

Plot
Ice Caverns of the Crystal Yeti immediately opens on a man in a grey jumpsuit in a small prison cell, without even a title screen. When the player presses the Start button, the cell door opens, and the player takes control of the man. Over the course of the game, the player explores the initial prison area and the surrounding underground facility, through medical testing areas, an engineering lab, weapons testing, and a power plant, before exiting the facility through an air vent.