They Breathe Easy “Echoes From The Past” achievement
At the start of the game, jump in and out of the water and over the log and other objects to get the “Echoes From The Past” achievement at the end of the game.
Easy “Triple Jelly!” achievement
When you reach the hole/pond with a group of about eight jellyfish, kill at least three jellyfish simultaneously. Get the group to move from left to right, and hit the air bubbles. Try to get them on top of each other, and when one blows there will be a large air bubble. It will cause a ripple effect if the rest of the jellyfish are close enough. Reload the wave, and try again if you did not kill enough. You will get the “Triple Jelly!” achievement at the end of the game.