No problem

If you want to duck slide, you should only be holding Down. You shouldn't be holding both Down and Right or both Down and Left

Yes, you can use those too

Just note that Mac runs at 60 flat compared to 60.0988139, so you'll lose about half a second every five minutes

You can use any controller you can think of

Fair

As far as I know, there's no leaderboard for Super Mario Bros. Flow, but there is one for Smooth Mario Bros., which is similar: https://www.speedrun.com/Smooth_Mario_Bros

SMB3 mods, could I add this to the resources?

Never mind, I found them

Got it. Thanks! And when you say they're added to the category extensions, what do you mean by that? Are you saying there's a category in the category extensions that allows touchscreens, or are you saying touchscreens are allowed in the category extensions categories?

To be clear, I mean a touchscreen on a laptop.

I'm asking because touchscreens may give a small advantage. In the All Endings category, after completing Pure Blooded Thief and spamming Retry to select it as early as possible and do the glitch to skip to the last choice in Government Supported Private Investigator, you could use your touchscreen to select Force Gun without needing to move your cursor via a mouse and save some time, and afterwards, after spamming Return to Start, you could use your touchscreen to select Cannon Ball without needing to move your cursor via a mouse and again save some time.

https://github.com/TheNoSwearGuy/SMB3-W1-HB I never bothered to share this until now, but back on August 2nd, 2023, I created the FCEUX version of these lua scripts that I refined later on, and today, I made versions for all other emulators that support lua scripting. These lua scripts predetermine the facing and moving direction of the World 1 hammer brother, and it can be used to find good Start presses.

@Oldshishkubob13 No problem

Here's an illustration. What's highlighted in green is the Y-pixel range you can land on to not only snap up onto the block but also to get wall jump. You have a five-Y-pixel window

First off: you can just call me NoSwear for short. Second off: what exactly do you mean?

Wall jump is never pixel-perfect. You have a five-Y-pixel window to get it

Normal Mesen 2 is banned, but you can use BizHawk or Mednafen