Figure 1.

Examples of games: A) Picture Reveal. User controls the location of the cursor (red dot). Maintaining the red dot within the indicated target (green) tile causes the white tile to be removed, revealing part of the hidden picture B) Maze. User attempts to move the red dot from Start to Finish. The walls are barriers to movement. To make the game easier, the game mode can be set to prevent the user from inadvertently moving the cursor backwards and losing forward progress. C) Asteroids. User tries to gather the gold coins without being struck by the asteroids. As performance improves, more asteroids appear. D) Volume Exploration. Activation for two muscles controls the cursor location (white tile) on the left plane and activation for other two muscles controls the cursor location on the right plane. The color represents the extent to which a certain activation region has been explored.