Infinite 1-Up trick

Infinite 1-up glitches are glitches that give you infinite 1-up Mushrooms (until the max is reached)

Retro games
In the retro platformers such as SMB 1,Jumping on a Koopa on a certain stage on a certain angle will glitch out the score style

Other games
There are many other ways to do it in other mario games.

Non-Apearencces
Super mario 64

Later versions of super mario 64 ds

Supr mario galaxy(But the sequel has it)

Trivia
this trick has been in almost every Mario platformer