I have played Master Duality solo for about 4-5 hours in total today. Completing it is coming down to pure luck. At the Boss fight, if the health bar is below half health, while teleporting into the nightmare realm for the damage phase it kills me 95% of the time. I have not been able to find a way to prevent this. The only way I have got passed this bug is to have a friend join and be dead when we teleport, they can then revive before the 3-second timer and revive me. However, this makes it impossible for me to play alone. Has anyone else been encountering this? Does anyone know a workaround? Am I missing some weird mechanic? I appreciate any input. EDIT: so far, I have noticed that if there are too many enemies alive when I teleport I will die. I have been having better luck with killing most the enemies then shooting the chains.