Keyboard Ko-op is my entry for the very first Game Maker's Toolkit Game Jam where the theme was "Dual-purpose Design" based on his video about the game Downwell which means one mechanic does two or more things at the same time.
Galavant across the galaxy as you break a sweat! In Keyboard Ko-op you either run on a treadmill or steer the ship. The runner powers the ship using the treadmill giving it thrust and the ship destroys asteroids to collect power ups that replenish the runner's stamina. If the runner begins sweating the ship then starts to lurch in any direction at a snail pace. Both the runner and captain (driver) are working in unison. The runner also has the ability to modify shot pattern on the ship by one of three buttons that each have a cool down period after each use. Buttons can be pressed in combination for even more fire patterns. This game can be played as a single player experience, but is more fun as a Co-Op!