Question: what to do mr x?
Answer: Don't be afraid. Even though Mr X is imposing, and can surprise you, he's not that big of a threat until the one scene where you're forced to fight him. ... 
Be ready. ... 
Walk, don't run. ... 
Don't fight him. ... 
Go around him. ... 
Save rooms are safe. ... 
Listen. ... 
Puzzles freeze time.