That could work. Horizon Zero Dawn exists:
That I’d prefer not to. I know the ice chicken boss and jellyfish boss don’t use the planet surface for anything, but all my other PEB use the ground for something.
It can be it’s own boss. Nobody said planets are only supposed to have 1 boss. I made additional bosses for every planet type:
PEB 1 Constructor Boss - Constructor boss (+ LORE attempt)
PEB 2 Underwater Squid Boss - Underwater Squid boss fight
PEB 3 Desert Ostrich Boss - Desert Ostrich Boss fight
PEB 4 Underwater Pirate Ship Boss - Underwater Pirate Ship Boss Fight