This Level is Too Big mang

Gotta assume this is a standard rookie platformer mistake. No, I'll build up the scaffolding to reach the catwalks in the underground bus tunnel, it's cool, I still have half a dozen props as textures I haven't deployed as 3d objects yet, I Am Dumb About Games.
It's funny because so many of us are designing games visually based on systems like NES, where memory was at a premium. NES would have fired me for this level.