Players must match the same colored blocks to clear the blocks and score points. Clearing blocks causes the blocks above to fall, if those blocks cause additional clears then chains are formed and the player receives bonus points.

Once a player is experienced the game becomes a race to create bigger chains to top the high score.

Use your ARROW keys to move the cursor, the SPACE bar will swap the highlighted blocks. You can force the stack to raise up giving you more blocks to match on more quickly, using the SHIFT key. To activate the upgrades use the C, B and M keys. (The upgrades need to be unlocked.)