If the start button is not there press the flag again arrow keys to move and look around, A & D keys to side step, M key for map and avoid Shrek. if your at the exit press M key Survive and Find the Exit. Have Fun! If you don't have a strong device I would recommend turning up the RES. USE HEADPHONES FOR BEST EXPERIENCE
Thank you Griffpatch for the help you should go check out his channel
