It's very difficult at the hardest level but it ramps you up very smoothly. The main story is something most people (and children) can beat fairly easily, getting all the strawberries takes some time and some tighter skill but it quite forgiving and generally requires only one "advanced" move at a time. After that you get B sides and C sides which are when the real challenge starts and you have to start chaining multiple advanced moves together.IMO it's an amazing game for transitioning from a casual platformer to a "hardcore" platformer if that is something you want to do, but you can also stop at a casual level and still get a full experience. There's also an accessibility easy option if you really just want to get the story.