The curious monkey in our fanart Bloons Tower Defense 6 cursor is a hero Geraldo released in update 31.0 and introduced as a Mystic Shopkeeper holding a wide array of support items in his shop, including road items, single-use abilities, tower boosts, and more. Only a small number of each item can be purchased in one round, but they will slowly restock. Geraldo will start upgrading himself every round upon placement. Then, the game character upgrades automatically after being placed.