Space Bomber Alien

"You, degenerate vampire. We'll tell the world about your peoples' secret participatiton in World War III!"

--One of the aliens who communicates during the Vampire Wars.

Space Bomber aliens are the (former) antagonists in an arcade game, Space Bomber. They start an invasion on Earth and demand a surrendering, but the US president, however, refuses, and decides to fight the alien invaders by himself using the Space Bomber fighter craft. Once the fight begins, the aliens activate the ruins on Mexico, revealing they have been hiding on Earth for a long time, waiting for the right time to begin their invasion. Between the missions, the president and the aliens exchange threats to each other, but the president successfully defeats the aliens and their king, so they surrender and flee from Earth.

A year later, the scientists introduced all those enemies from all levels of the Space Bomber game to real life Earth, and are no longer aggresive (and are also friendly to) humans, dylanuses and other sapient species, except vampires due to bloody conflicts with them.

These strange-looking aliens all look like cartoonish balls with small eyes and big lips, often wearing hats and adornments following the thematic of the current stage. They also take on the shape of various cute animal heads and their machinations are just as weird, with giant trash cans and the like.