What is causing this headache? What is with the sickness? I have had hangovers - BUT this is something else?????

HELL-P ME WITH MY HANGOVER 

A solo and challenging fun map. I am not a pro or even good with computers and level design so please don't hate! It took 18Hrs + of work and play testing to get it balanced and right. No cheap deaths/spawn trapping ect. 

All is working and no cheap spawing enemies or issues. Played through and tested/completed on MANY occasions.

Survival game mode type - so one life and various weapons to beat that headache!