SUPER MARIO BROS 2
Warp from world 1-3 to world 4:
At the end of the first section of world 1-3, drop a
potion next to the large plant pot, go in the door
and down the pot to warp to world four.
Warp from world 3-1 to world 5:
When you reach the waterfall, fall into it and land on
the platform at the bottom. go through the door, head
right, pick up the potion from under one of the plants,
drop it by the pot, go in the door and down the pot to
world five.
Warp from world 4-2 to world 6:
On the whale section, run to the right, pick up the
potion, and continue until you reach the flower pot.
Work your way around to it, drop the potion, do what's
required and head off to world six.
Warp from world 5-3 to world 7:
You'll need Luigi to be able to make it to this warp.
After climbing the ladder into the level, super leap to
the top platform, and use the potion to go in the warp
door and down the pot. This leads to world seven.
