hexaGONE is sort of like abstract Scrabble. Instead of creating words (and then losing a friendship over an argument about whether yex is a real word) players strive to create sequences which match any of the various face-up Sequence Cards. The sequences on the Sequence Cards range from simple 4-hexagon sequence to more complex, longer ones.
Special-Play hexagons add variety to the game by allowing players to do more than just place hexagons onto the board. Here are some of the Special-Play hexagons included in hexaGONE:
Swap-agon: swap the positions of any two hexagons on the board.
Draw-agon: immediately draw 2 hexagons. You may exceed your hand size limit for this turn only.
Move-agon: move one hexagon on the board to a new location
Bomb-agon: remove a face up Sequence Card then you may immediately draw a new one