Super Mario Bros. ROM Hacks - But does it work on Real Hardware?

There are hundreds of Mario ROM hacks that I can't possibly test them all, but with many popular ones, including bizarre ones, do many of them actually work on real hardware? Or is emulation the only answer?

CHAPTERS:
0:00 - Mario takes over
0:27 - The hardware and equipment
1:24 - New Mario Bros.
2:33 - Rohrleitung Gate
4:15 - Super Flappy Bird Nightmare
5:32 - Super Mario Bros. Resprited
6:15 - Super Mario Bros: Time and Place
7:34 - Pepsiman (for NES)
8:32 - Sonic the Hedgehog in Super Mario Bros.
9:19 - Honourable mentions
10:29 - Super Mario Unlimited - Deluxe
12:36 - Is the NES that super?
13:02 - Outro

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SOURCES:
Pepsiman advert -    • Every Pepsiman Commercial in HD / ペプシ...  
Super Wario Bros.: English Version - https://www.romhacking.net/hacks/5394/
Extra Mario Bros. (SMB 1 Hack) Final Boss -    • Extra Mario Bros. (SMB 1 Hack) Final ...  

CREDITS:
Title Intro animation by Bryan Salter:   / bryansalter  
Intro music jingle by Funk Fiction:   / funkysynths  
Thumbnail art created by Ian Schwabe:   / artisian_  

DOWNLOADS:
New Mario Bros. - https://www.romhacking.net/hacks/3954/
Rohrleitung Gate - https://www.romhacking.net/hacks/3073/
Super Flappy Bird Nightmare - https://www.romhacking.net/hacks/2536/
Super Mario Bros. Resprited - https://www.romhacking.net/hacks/5406/
Super Mario Bros: Time and Place - https://www.romhacking.net/hacks/1717/
Pepsiman (for NES) - https://www.romhacking.net/hacks/3768/
Sonic the Hedgehog in Super Mario Bros. - https://www.romhacking.net/hacks/3902/
Super Wario Bros. - https://www.romhacking.net/hacks/2430/
Super Wario Bros.: English Version - https://www.romhacking.net/hacks/5394/
Super Luigi Bros. - https://www.romhacking.net/hacks/1873/
Extra Mario Bros. - https://www.romhacking.net/hacks/369/
Super Mario Unlimited - Deluxe - https://www.romhacking.net/hacks/5546/

HASHTAGS:
#MarioROMHacks #SMB1 #BDIWORH