Programmer here,
We were trying to have the game play out on a semi-realistic terrain with a whole monastery setup and designed, a little lake, mountains etc.
So we take a step back 2 hours before the original deadline and just go: "Ok, this looks like a piece of sh*t"
I quickly delete the whole level (except the gong), grab the post processing stack, turn bloom up to 11 and assign emissive materials on EVERYTHING. And it looks kinda nice now :P