Open channel3.gg in Chrome. Click the Install icon in the right side of the address bar:
Click Install when you get this prompt.
After installation, you can pin to the Windows taskbar alongside your other favorite apps.
Open channel3.gg in Safari. It has to be Safari.
Tap the Share button in the middle of the footer.
Tap Add to Home Screen.
Tap Add on the prompt.
BOOM. You're done. iPhones try to act like it's "just a website bookmark" because they want everyone to go through the App Store but really it functions just like an app... Full screen, moveable icon on your home screen. All of it.
Enjoy.
Install the Channel 3 app from the Google Play Store.
I have clear and fond memories of opening this on Christmas Day, I want to say 1992. It stands the test of time better than any NES title and better than a lot of newer games too. For some, it's the greatest SMB game ever made, for others it's the greatest period. The levels, worlds, and power-ups inspired SMB games after it for decades.