Play as the Grablin character. The Grablin will turn Crossy Road into a clicker game: You can beat Crossy Road characters by tapping and swiping the screen, they will have a hitpoints bar and different levels, so it will get more and more difficult to beat the enemies. It is said, that you have to beat a enemy of level 35 or above. We unlocked Purple Bloop three times so far using this method, but one time it didn’t work out. Hence, our guess is that it’s rather a certain amount of taps and swipes than the exact level of the enemy. Most likely you will need 500 taps, which is around the time, when you have beaten a level 35 enemy.