Yeah I had absolutely no time to get on making assets for menu and switching the game-mode.
It is interesting how the writeup got you to understand the blue part. The red one is actually the one it is describing (outside of the controlls of course). In the red part you're meant to kill the skeletons (which might be hard to tell because of the glitched out health bar, thanks godot for that export bug), while in the blue part your playing the lord of the skeletons and killing the oil barons instead (you got the roles kind of reversed in your description there).
I hoped that side-switching would be apparent enough from setting and high-score descriptors. But a proper intro could make it far better (but absolutely zero time for that because I only thought up the story within the last hour).