To get the second easter egg and 1000 coins do the following. Go to the "escape from tree rex" level on story mode. Jetpack down to a platform with a crate. Get the crate and receive two bazookas. Now shoot the mouth of the T rex (not the platform in his mouth). A message will appear saying "you found an easter egg". Now finish the level (it doesn't matter if you win or lose). You now have the second easter egg and 1000 coins.