This, being a Disney game, I was skeptical of first, but having found it for 50p, I decided, it worth a go. First of, practice mode!
Practice mode is so ridiculously easy, that my 6year old brother can beat it in under 15 minutes. To any serious gamer, its less than 10 minutes, and its actually a challenge to lose a life. Practice only contains 3 levels. Now, onto the other mode!
The level layouts are pretty much the same as the practice, but with blocks in places that can block any, but the most well timed jumps. And it only gets harder.
When you first beat it properly, (ignoring the silly ending), and you will be in a good mood for weeks. Recommended.