Use the arrow keys to move Ruffer across the screen. Collect 20 energy balls. That's it although I might add a timer to make the game harder .
Lore: In the year 2100 Aliens Have colonized nearly 80% of earth and all of humanity has been wiped out. The world's Dog population loved their owners so much that they secretly took a huge spaceship that was originally made by the humans to space and try to figure out a way to bring humanity back. They try to build a time machine to stop the aliens before they even took over but they lose the 20 energy balls needed to power the machine. They send Ruffer to retrieve them across parts of the ship.