press up arrow for merge, down arrow for normal background, left arrow for 2 teams, right arrow for 3 teams, drag them to do challenges, and click them to eliminate them. Also click the green acid shaped as a flag to start.
credit to @Swatpack! :) also check out @Sterlon's make your own BFB! O_O 5 views already?! I just shared this like, 30 seconds ago!
