You unlock a bonus level and you have to fight big bird
You have to complete the level and/or get a good rating/score.
Ha ha probably
there is no way to make your own custom Angry Birds level YET
Mighty Hoax is unlocked after you beat every level in the first world.
3. Harvest Above. Level 14.
play it
in your bum
yes
Level 9-13 is in "The Big Setup." There are three birds, and all of them are big red birds.
By Completeing level 5-12
You beat the level and you can move on to the next level.