Skully

"Hey! I'm not a bonehead! I'm a numbskull! Get your facts straight!"

Skully is a skeleton. He is, apparently, the long-lost brother of Adam Sandler. Skully decided to serve in the Skeleton War rather than follow in his brother's footsteps and make shitty movies. Austin stumbles upon him during an adventure with Vizit; when Austin finds him, Skully is busy settling a lifelong duel against his arch-nemesis, Captn Fostn.

Personality
Skully is the complete opposite of Adam - where Adam is brooding, impulsive, short-tempered, psychotic, and ruthless, Skully is upbeat, thorough, good-natured, intelligent, and easy to get along with. He is a seasoned soldier, having served many years in the Skeletal Air Force, so he knows more than a few things about weapons, machinery, flying, and tactics. It is shown, however, that he can hold a grudge, as evidenced by his ill will against Captn Fostn, one of the prime fuckboys from the Skeleton Wars. When Austin finds Skully in the Kaneda Ruins, Skully and Captn Fostn had been having a final duel for six days straight, fighting with guns, lasers, bombs, and fists (or bones, in Skully's case), each unable to get an advantage over the other.

After Austin resolved the issue, Skully started an organization of Skeleton War veterans, which happened to attract a following of Fuckboy veterans from the Skeleton Wars. Everyone managed to resolve their issues and past grudges, as did Skully, who decided to dedicate himself to stopping the efforts of his evil brother, Adam, in order to ensure the world didn't waste their money on yet another shitty Sandler film.

Trivia

 * Skully is almost always wearing his scarf and pilot's goggles; he also has a Skeletal Air Force necklace hanging on (what used to be) his neck.
 * Skully's veterans organization is formally known as SkullVets.
 * Skully was unable to stop his brother, Adam, from making Pixels. He regrets it to this day.