I loved this game so much I had it at 100% completion which included solving all the challenges and riddles. I'm really proud that I did it without using any guides. I just don't want to get spoiled of its surprises.
The shock and Awe extreme challenge was the hardest for me! Can't even remember how many times I went through that before I got it completed with all the trophies. Solving all the riddles was pretty amazing too!
Thank you for the nostalgia trip! :D