Like the games that inspired them, Pokemon GO features a variety of Poke Balls for players to find, earn, and purchase. Rarer Poke Balls have a higher chance of catching Pokemon, with Ultra Balls being the second rarest and most powerful after the Master Ball, which automatically catches any Pokemon it is thrown at. However, a Pokemon can still frustratingly slip free even from an Ultra Ball, something which consistently frustrates Pokemon GO players. One small change to how Ultra Balls work could alleviate this: making an Excellent Throw with an Ultra Ball guarantee an automatic catch, or at least dramatically increase the automatic catch chance.