Bouncians have invaded from the furthest depths of space!
Earth's only hope is the Shot, a starship secretly developed for this very contingency. But the Bouncians have countered by enveloping Earth with their own Bounce Barrier, a wall that can deflect anything, even the Shot's own bullets! Think you're smart, huh, you sneaky aliens? Well, guess what? We Earthlings can use your bouncy wall just as easily as you can!