A single game combining facets of three classic games to exercise your brain: MahJong, Picket, and Tetris. Symbols are dropped (ie rain down). Pair the 15-different celestial symbols that can appear in 6 colors and 4 orientations. The game board allows for three layers of symbols to build up. Highest level is CAT-5. Enjoy the beginning level (Drizzle) to get proficient at tapping the symbols because its going to get ugly.
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Good Luck.