Catch Bonuses
Upon its initial release, Pokemon GO simply featured medals. Other than granting you a nifty XP bonus when reaching particular milestones in the game, they didn’t really do much else. And while these aren’t entirely devoid from the game now, the new catch bonus system makes good use of the medals that track the types of Pokemon you’re catching.
This catch bonus meant that if you start catching a ton of a particular type, you’d get an increased catch bonus that makes capturing that specific type of Pokemon easier. For example, the Swimmer medal is awarded for catching set amounts of Water-type ‘mon. Upon reaching 50, the player will receive a +2 Catch bonus which will then make catching more Water-type Pokemon even easier. A neat little way to make catching the same common Pokemon over and over again a little less boring.