One day, little penguin Forrest Gump's father, Mr. Gump went on vacation. He left 12 icefishes which looks the same to each other. But one of them is eather heavier or lighter than all the others. 

You can use the balance scale three times to figure out the odd icefish. Drag icefishes to the pans of the scale, and press the ball button of the scale for weighing. Drag it to Forrest if the odd icefish is lighter, otherwise drag it to Forrest's mather,Mrs. Gump.

More about Forrest
1. Anyone tells Forrest to run.
2. Forrest refers to Jenny as "my Jenny".
3. Forrest meets someone famous.
4. Anyone asks Forrest if he's stupid.
5. Alabama is mentioned.
6. Forrest mentions something his mama always said.
7. Forrest does something new with his life.
8. Forrest says "Stupid is as stupid does."
9. Forrest says "My momma always said, 'Life was like a box of chocolates. You never know what you're gonna get.'"

Oh, yeah, that's right, it's not a stupid game.

Source: http://itunes.apple.com/us/app/forrests-icefish/id333217357?mt=8