How do you get on world 7 on New Super Mario Brothers?

Answer 1

there are 2 ways to do that. First way: defeat thw world 2 boss as mini Mario. Then theres a cannon somewhere in world 4 (unlocked by defeating the world 2 boss as mini Mario). Use it to blast to world 7. Second way: defeat the world 5 boss as mini Mario. If you defeat those bosses with mini Mario only and never defeated it as normal sized Mario, you skip world 3 or world 6.