Super Mario Brothers 2 Cheats (Nes)

When you use the magic potion to get the mushrooms, do not pick up the surrounding
vegetables (which are coins in the magic door) immediately. Find the location in each
level where there are the most vegetables that are close together. Drop the magic potion
and go in the door. Pick up as many coins as possible. Repeat this once, after doing
something that will make the potion reappear (such as climbing a vine, going down a pipe,
or entering a door).

  
  In world 3-1, take Toad (because of his lifting power). Fall down the waterfall onto the
platform where the door is at the bottom. Enter the door and get the magic potion. Drop it
anywhere there is a continuous stream of coins. Enter this door, and grab as many coins as
possible. Go out the door you came in, then return, and repeat once.

On world 4-1, get the princess. Go up the vine, but go left, run, and fly to a secret
door. Go through the door and use the bombs to blow up the wall. Then, jump over the top
of the screen and run left.

Use the Princess in world 4-3. A castle will appear after crossing the lake. Do not enter
the castle. Instead, fly further across the lake to find another part of the castle. Go
through the second door to fight Fry Guy.

Each time the spinners start in the bonus round, the second symbol in the first slot is
always a cherry. Do it correctly, and you can guarantee yourself an average at least one
extra life per coin.