Three of a kind and they burst!
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Fire balloons up at the wall. Three or more of the same mark touching each other and they burst.
Phone: drag anywhere to aim, let go to fire. Computer: left and right arrows to aim, space to fire. The two rails on the pump show where the shot is going — you have to picture the bounce off the walls yourself.
Look at the mark on each balloon, not just the colour. Balloons left hanging on nothing float away, and those are worth double.
Pop nothing too many times and a new row arrives at the top. HARD adds a sixth balloon and starts you with a deeper wall.
A game with a different look!