Hey!
Yupp you're absolutely right! The player is in fact stationary. It's the terrain that shifts in height and gives that vibe.
I originally made the green zones disappear faster and the red zones creep up slowly and the only way to heal or restock on ammo was to kill the missiles that would then drop health and ammo packages but i didn't have enough time to finish it.
I will be updating the game wth this stuff and it should be up on my itch page.
Thank you so much for trying out my game and for some good feedback.
Hope to see you playing the updated game soon!
Cheers!
trip