got all the Chaos Emeralds, medals and completed time challenges, but ended up with a percentage of 89%
I assume it's because it's still thinking that Act 3's medals aren't collected, but I'm likely wrong.
FOR THOSE WHO WANT THE PASSWORD FOR PROOF (or if you're a dirty cheater...)
8:T8:GV8B9/
Well, it seems you may have missed a Time Challenge, as I am at 90%. Working on the 5,000,000 score, it is very time consuming and slow though in my opinion as I am at 1,691,800 and have been replaying levels and time challenges but I did mention to Hut that 2,500,000 would be more suitable.