DISCLAIMER: DO NOT ATTEMPT TO USE THIS MOD ON A FABRIC SERVER, IT IS INTENDED FOR SINGLEPLAYER USE.
Things to know
This mod is heavily based off of Pehkui, to the point where it can be considered a mod of a mod. Make sure to check out the original mod here. There is also no starting command, just put it onto your game and you will start to shrink.
How it works
Although the title says one minute, its actually every two minutes that you shrink. Your size will reset upon exiting the world to prevent you becoming so small the game becomes unplayable. You shrink the equivalent of one inch IRL, starting at 5'11 and shrinking down.
Original video
The TapL's You Shrink every Minute CHALLENGE (RECREATION) Team
