After eons of doing literally nothing, I've finally did it! The brainchild of my completely unhinged, crack-taken-seriously theory
Here is Costar! A child actor whose show was cut short with the sudden firing of his director, though there seems to be more going on than simply having the cord cut. Nowadays, he goes around doing his... thing (even if it's not enough to satisfy). Helping others, running a shop on Mediapolis' outskirts, try racing around Butterscotch Hills or the Dusty Bowl, and some more. Just any odd job would do. Deep down, however, he secretly wishes to return to his old set, if only to play around and reminisce. Maybe "wish" isn't the right word... Maybe "compelled"? Memories compel you to just suddenly attempt nostalgia in odd ways, do they?
As elaborated on a previous post, Costar comes from a word of the same name (meaning a lead actor sharing a role with other major ones) roller coaster (something fast), and sounds almost like Gaster if you stretch it
In the Light World, he's a game left in the console under Asriel's bed. With not much to do while its player left for college, it sits there collecting dust.
FACE is a
So yeah, that's my take on Chapter 3's secret boss. I do plan to keep these guys around when the official Chapter 3-4 finally drops. I have plans to use them as alt secret bosses. Which probably means I'll have to make alt secret bosses for Chapter 1-2.
