Here is the video showing No bump method to achieve wrong warp for 4-2 .

Video on Twitch.

Usually you need 2-3 bumps atleast for WrongWarp to work technically speaking you need 20 pixels of bump to ahcieve this,

For Wrong Warp xPos should be 132. By Default xPos is 112. Need 20 Pixels for wrong warp atleast.

But from this method you dont need any bumb you just need to duck at the right time and press keep pressing left so that Mario will be ejected to right. thus giving your xPosition a bump.

Not new. Also playing this game as big Mario is way harder than playing as small Mario.

It maybe useful for those who find Wrong Warp regular method very hard . And for casual players like me i play as big mario sometimes.