I have been playing Bounce On every since it was released toward the end of 2008 and now having played the full version of Bounce On 2 (pre-release) for the past three days. I can confidently say it has improved in every way possible.
Everything is top notch: from the way Bounce interacts with the surrounding environment, to the sound/voice effects, to the controls. A great deal of time was put into this game and it shows with every new level unlocked.
With loads of levels, killer boss battles, wicked power-ups and your trusty companion Bounce.... it really is a must buy, right now type of game.
If you don't own this game when it is released in the U.S. you will surely regret it.