All purchases give you money. You should be able to upgrade everything from the start. The game is 10mb - let it load.
Catapult Madness Hacked
Fire your kingdoms peasants from your newly made masterpiece of a catapult and see if you can fire 1 of them 50000 feet so that you can get help from your Allie in the next castle to fight of the Trolls who are after your daughters.