Happy Merge Bang

How to play Click two or more balls of the same number, they will merge into a larger number. At the same time, a new 2 or 4 balls will randomly appear on the board. Click the chessboard to merge them, 2 2→4, 8 8→16...32...256...1024...When the 2048 square appears, you win! Haven't played enough? Then continue to challenge 4096, 8192...