What you need to do is to get at least three consecutive marbles of the same color together. You can grab the top one (or ones, if they’re of the same color) and then throw it to whichever vent you want it to go to. Select which side you’re going to take a marble from using the arrow keys. You can release it by again pressing which directional button you want it to go to. The marbles won’t wait for you, though, because these will continue to keep coming at Pochacco until they reach him; at which point, the game ends.
There are special marbles that will aid you and Pochacco, and these can be easily seen, as they look slightly different from the normal ones. Activate these by again placing them with at least two other marbles of the same color. Depending on the marble that you get, any one of these might happen: all marbles will be cleared, marbles from that row will automatically disappear, or the marbles will stop moving for a few moments.
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