Hard Mode on Word Blend:
Get 12 Stamps.
Hard Mode on Missing Symbols:
Get 20 Stamps.
Hard Mode on Memory Addition:
Get 24 Stamps.
Hard Mode on Block Count:
Get 26 Stamps.
Hard Mode on Calculate the Height:
Get a perfect 5/5 score.
Hard Mode on Word Blend:
Score 100 points.
Hard Mode on Sign Finder:
Get a time of 17 seconds or less.
Hard Mode on Masterpiece Recital:
Get a perfect score of 100.
Hard Mode on Memory Addition:
Get a time under 40 seconds.