Super Mario Bros Secret Negative Level on World 1-2

The level -1 is the same as the levels 2 - 2 and 7 - 2 but you get warped back to the beginning when you get to the end in this secret level.

[thaawesomealt]

Fun fact:

If you are on the famicon version, it will be underwater 1-3 with random enemies that die. There is a goal, so you move on to 36-2 (-2) which is an exact copy of 7-3. Then you go to 36-3. This is an underground 4-4. There is no maze in it. There are bloopers and no bowser. When you complete the level, you go to the title screen and play the hard mode as if you have beaten it. If you go in the middle pipe instead of the right, you go to world 5. Before the warp zone in 1-2 is fully loaded, it thinks that this is the 4-2 warp zone. The middle pipe in that one is world 5, you that is why you go to world 5. There are no left and right pipes in the 4-2 warp zone, so it takes you to world 36. If you are on the regular version of the game, you go to a looping 7-2. On the Japanese famicon, you go to the levels I just described.

[adeforeman]

The middle pipe also takes you to world 5 instead of world 3

[felypereda]

There is a chance of spawning in a level called box-1 its a under water level but when I finish it Mario is just walking but he never enter the castle very weird

[Three_Beers_Before_Breakfast]

At the end of 1-2.
You DO NOT need nor have to break any blocks. To enter the secret levels. Accessing the hidden three pipes.

[cyphlone]

you can actually find a secret mushroom after breaking a block above the straight floating line of blocks with coins.
*first one to discover*

[OZ]

You forgot the extra life in the top brick.

[marcoslemes]

i built a super Mario world but Mario is on a NES level

[CinemaStormz]

Awesome video game play through keep up the good work!

[marknewlandmn]

There is a much easier way to access that area no glitch required. Earlier in the level just jump on the shelf then jump through the ceiling and you can run along the top to that secret room.

[swaggindragon]

You reckon the game developers know about this glitch?

[Openyoureyez]

Dude you could of broke the bricks and walked up the while time instead of doing that squatting

[estebanmiranda]

The birmap of dead mario is similar to a mouse

[rezeldevezel]

how do you move while doing a crouch jump?

[Dman]

So many idiots thinking you're trying to access the 3 pipes people k ow to climb over. You shoukd gave shown the secret negative water level.

[kldzmpz]

1:06 you can just ride and get off at the top

[jonp]

You could have just used the things moving upwards and jump over on the blocks, run all the way down and drop! It will expose 3 pipes! No need to jump backwards on the pipe to go through the wall.

[roccodebellis]

That’s the warp room. You just ride the uplift thingy and jump on top and walk there!!!

[shrubby]

Does this work on the nintendo switch?

[bojangles]

😭 you just use the ramp before hand to jump on top of the wall