You rescue the princess and finish the game then all the mushroom houses can be used innumerable times and you get a background change mushroom which comes in world 1 where you can buy new backgrounds and change your current backgrounds.
finish the 6th world
In Super Mario World 2: Yoshi's Island, The game autosaves after you finish a level.
kill the boss
you win the game In super Mario world 2 you go back to main map
As far as I know, there is no "Maybi" in Super Paper Mario. I finished the whole game.
finish world 8 with all star coins
To get World 2, just finish the World 1 castle course; to unlock World 7, finish World 5 castle course with MINI MARIO (this is important)
you gave to finish the castles of each world as mini mario(the one that you can barely see)
you need to go back to world 2 and defeat the boss withe diddy Mario
Mario Bros. Super Mario Bros. Super Mario Bros. 2 Super Mario Bros. 3 Super Mario World Super Mario Land Super Mario World 2 Super Mario Land 2 Super Mario 64 Super Mario Sunshine New Super Mario Bros. Super Mario Galaxy New Super Mario Bros. Wii Super Mario Galaxy 2
super Mario world is a totally different game.
Super Dragon form does not exist in Super Mario World.