Love the music, the medals, the fact that half the poster covers around half the width so you can easily scroll up and down either half, but most of all that artwork! So incredibly detailed and entertaining! I don't recognize have the superheroes and/or villains portrayed, but their all depicted in unveiled pixel glory. Was stuck on 042 for the longest time, but mousing over most noteworthy characters was a breeze, and what a rewarding feeling getting medal after medal for such a simple task! Nice work!
Btw, had to click the Twitter link twice to get the Everything medal, first time the medal unlocked on the page, but not the achievement in-game.