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From Forlaget Abeland:
It's time to get medieval on the King and blast his castle to pieces! Too bad he lives in a bouncy castle and the stone will bounce right back into your own troops. But don't give up that easily: you might still be able to stay alive and become the new emperor to rule even the annoying king. And there might just be a princess in it for you as well! The gameplay is all about timing and precision. It's easy to pickup and you'll quickly advance in levels. There is a high replay value as you'll try to perfect your score. Features: + Bounce your way through 6 levels. + Realistic catapult action with cool bouncing effects. + Animated skies with birds (wooha!) Download now!There is also a paid version without advertisement.