Bubble Struggle was created by Kresimir Cvitanovic in 2002 and since has been one of the best flash games of all time to play. The game features bubble popping action that showcases a wide array of weapons, clock stoppers, and shields. The bubbles in the different levels come in all different sizes and colors, and sometimes are required to be popped before you can move into other parts of the levels. One of the best strategies found is to shoot your popper right before you encounter the bubble so that the bubble pops on the side of your popper. Playing the entire game from beginning to end could take over an hour, so be prepared for plenty of levels.