world 6-1 has a dead end how do i get through

How do I get to level 7 I already beat level 4 now I need to find a way to get to, level 7

If you are tiny, you have to jump in the air and then press "down" on your directional controller to be able to do any damage to the boss. I too was frustrated and after maybe 50 times of trying to do it finally figured that you have to jump and then press down in order to beat the boss. Hope this helps.

how can you beat the monster with the mini mario you cannot jump on it and do any damage when you are tiny

I am having the same problem How do I get to worlds 4 and 7 I have beat the game twice and found all the warp zone passages but in world three where is the secret exit on world three ghost house

im trying to get to level 4 and 7 and can't seem to get there no matter what i do i have beat the whole game beside those to levels can somebody PLEASE PLEASE HELP ME IT'S KILLING ME NOT TO PLAY THOSE TWO WORLDS.

according to the cheats im supposed to beat the boss in the last castle of world 2 with mini mario to unlock world 4 well i have beat that boss as everyone all sizes and i still cant get to world 4 so if someone can help me that would be great