is it possible on Android to do it

Android emulators aren't allowed.

Why

bc they're inaccurate

Okay how can it be inaccurate on android

because android is 1. kinda slow. 2. the framerate is most likely off.

What if I do it on my nintendo switch

Thats ok

To speedrun super Mario bros on switch do you have to buy the game on switch or not

You must have a subscription to Nintendo Switch Online, which is around $20 for a year or less but you can get a free trial of it for a week.

Thank you

I did a run for 1-1 As Fire Mario on my phone and it was accepted. I used NES.emu.

I'm pretty sure that's not allowed

You have a ilegal run in the leaderboard and nobody realice lmao
but tecnicaly are banned
your run will die when a moderator read this

nice

Like, I didn't do it with any bad intentions. I thought that what mattered was the emulator core. And since I left an observation and a mod still verified it, I thought it was cool. Sorry I guess

Just to assure, I didn't get any punishment or anything right?

Well, you tecnicaly be able get the run accepted, so that mean that the moderator that verificate it doesnt realice it was a mobile emulator; im not saying this to criticate the mod, but i mean, if there is no diferetence visible in mobile emulators and you can play it without being visible you are palying in mobile, i dont know which should be the issue to submit runs with it lol

Makes sense, but rules are rules and I don't think I have much choice by now