basically it will be this


on the first 3 levels, it will be easy (because you are learning the basics) however after these 3 levels, that's when the difficulty spikes up a little. each world you complete the difficulty spikes up. the final 2 worlds will have a high difficulty, the final world will be the hardest, and the bosses will be difficult. the final boss, (tophat king) will be very hard and will have 5 phases.