In the original Star Fox on SNES, Venom was once a lush, green world like Corneria until Andross, exiled for dangerous experiments, invaded and polluted it, enslaving its inhabitants and turning it into a militarized wasteland. Star Fox 2's Expert mode briefly showed Venom returning to its green state, suggesting terraforming.

Star Fox 64 retconned this, portraying Venom as a desolate world from the start; Andross was banished there by Corneria specifically because of its harsh conditions. However, Star Fox Command later revealed Andross had actually built a terraforming device to turn Venom into a green, livable planet for his descendants, reversing his SNES role from destroyer to would-be savior.