The Gut Check Challenge is a Shrine quest from The Legend of Zelda: Breath of the Wild. The quest is obtained from Bayge at Gut Check Rock. Bayge challenges Link to climb all they way to the top in 3 minutes in addition to collecting 100 Rupees on his way. Once this is done, Bayge allows Link to access the shrine behind him.
After completing the quest, Link can repeat the challenge as a mini-game to earn Rupees.