Infinite fall

From SMO.wiki

An infinite fall is a location in which the player can fall indefinitely below a level without dying. This generally involves jumping far enough to get past the death area in a level, but in some cases infinite falls can be triggered using glitches, which will cause the death area to be ignored.

Because Mario cannot warp back to safety while in midair, every infinite fall also functions as a file softlock.

Locations

The following is a list of some known infinite fall locations:

Kingdom Level Method Video
Cap Kingdom Poison Tide Corner clipping with a Paragoomba and flying past the death area Link
Cap Kingdom Frog Pond Moon clipping out of bounds Link
Sand Kingdom Freezing Waterway Using the Gushen noclip glitch and falling on the left side Part 1

Part 2

Lake Kingdom Puzzle Part Room Trickjumping onto the top, then jumping over the death area Part 1

Part 2

Metro Kingdom New Donk City Hall Interior Moon clipping out of bounds Link
Snow Kingdom Snowy Mountain Damage clipping out of the Rango fight, collecting another story moon in another room to get rid of the arena walls, luring Rango out of the arena, damage clipping with him through the wall by the entrance, and then bouncing on his hat out of bounds over the death plane Part 1

Part 2Part 3Part 4

Snow Kingdom Wind-Chill Cavern Tyfoo uncapture clipping or damage clipping out of bounds and jumping over the out-of-bounds poison Method 1Method 2Part 2
Snow Kingdom Hollow Crevasse Clipping out of bounds using a Bitefrost Part 1

Part 2

Snow Kingdom Snowline Circuit Using the Bound Bowl out-of-bounds glitch Link
Snow Kingdom Cold Water Dash Trickjumping over the death area using a Rocket Flower Link
Seaside Kingdom Cloud Sea Trickjumping over the death area at the end Link
Seaside Kingdom Spinning Maze Trickjumping over the death area from the starting platform Link
Mushroom Kingdom Overworld Using dog hovering to get over the death area Link