If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Mercurial Story is about a moody guy and his eternal inner fight between anger and happiness. You will have to play through 18 levels in this Puzzle meets Platform Game with a strange Gravity to complete it! While he is happy the moody guy can double jump and the gravity faces down, but when he is angry the gravity faces up and he is unable to double jump. Can you help him get through it all with his super mood swings! Ugh, good luck!