From what I've observed after coming back from a day and crafting, each one upgraded first try. So I believe the percentage of success increases over time. but falls after you redeem it?
When he turns into bad-ass skull form-- which he will do -- There is an area in the middle of the map (in a dirt pit, the bigger one) Where you can easily dodge the attacks. + this to keep it alive!
I would have never found this game if it werent for the daily badge, but man am I glad I found it. I didnt even know I was into this kind of thing! 5/5, favorited.
Great game. Got all the checks not even noticing. lol. And I agree with DB8888, but the game didn't take that long and I put unwanted furniture in behind the building, lol!
 "Auto-Attack!"){kind=icon}
 "Castle Crashing \"The Beard\""){kind=icon}
 "ELEPHANT RAVE"){kind=icon}
 "Crunchball 3000"){kind=icon}
 "Papa's Cupcakeria"){kind=icon}
 "i want moon"){kind=icon}
 "Ninja Dude"){kind=icon}
 "Cow Race"){kind=icon}
 "Painters Guild (Alpha)"){kind=icon}
 "Twilight Sparkle Christmas Day"){kind=icon}
 "Pandemic 2"){kind=icon}
Thanks :D