Board Thread:Tapped Out Help/@comment-10811288-20131002201434/@comment-174.103.155.28-20131002202813

At 4k goo you'll unlock a house. Building that unlocks the ray gun. Which might crash the saucer unlocked at 3k. Enjoy!

http://simpsonstappedout.wikia.com/wiki/Treehouse_of_Horror_XXIV_Event