Could be a bit more player-interactive, because its kind of boring just clicking the mouse for upgrades and then sitting back and watching. For instance, Clicking at the right time for the perfect pogo jump, a launch bar at the beginning of a run, and being able to move around using the arrow keys while in the air.
 "Swords & Potions"){kind=icon}
 "Pogo Rampage"){kind=icon}
 "Sieger: Level Pack"){kind=icon}
 "Elephant Quest"){kind=icon}
 "Pestilence Z"){kind=icon}
 "Hello World!"){kind=icon}
 "Tasty Planet"){kind=icon}
 "Power Paintball"){kind=icon}
 "Corporation Inc."){kind=icon}
 "Arcuz (Full Version)"){kind=icon}