Blockhead is a puzzle game similar to Sokoban. The player controls a character named Bertie from a top-down perspective who has to push and pull boxes into their holes. Once all the boxes have been placed correctly an exit opens up which Bertie has to reach to finish the level and move on to the next one. The game is timed.
On the right side of the screen is a character named Petrified Pete who has a 16 ton weight falling on top of him. The player has to complete the level before the weight crushes Pete. If he fails to do so, he will lose a life and will have to restart the current level. As the weight falls, it changes from gold to silver to bronze. The higher your value is when you complete the level, the more points you will earn. Another way to earn extra points is to collect fruit (bananas, apples, oranges) and hidden jewels scattered throughout the levels. The blocks can have different colors and you have to push them into the holes of the same color. Some levels have dynamite which is needed to blow up certain walls.