NSMB - Mario Vs Luigi Online

A Unity-standalone 2-10 player remake of the Mario vs. Luigi gamemode from the New Super Mario Bros DS download game.
Includes the 5 default levels (Grassland, Bricks, Castle, Pipes, and Ice), along with a handful of custom levels to battle on! All power-ups are included and remain faithful to their original counterparts, along with the new addition of the Propeller Suit, Ice Flower, and Hammer Suit!

Obtain the "Make App from Web URL" shortcut from this page on supported iOS devices.
If it doesn't automatically open, open the Shortcuts app.
Select "Make App from Web URL" shortcut, set the name to "Mario vs Luigi".
Copy and paste this URL, and use this image for the icon.
The shortcut will create the configuration profile and ask you to download it. Tap "Allow" then "Close."
Open Settings. You may see a "Profile Downloaded" option near the top of the main Settings view, which you can tap on to take you right there. If not, head to Settings » General » VPN & Device Management, then tap the name of your downloaded profile.
Tap on "Install" at the top right, then enter your passcode when prompted.
Return to Home Screen and launch the "Mario vs Luigi" app to play the game.

Visit this page from the device you want to install the game on.
Tap the Share button in the Safari toolbar.
Select "Add to Home Screen" from the options that appear.
After adding the game to your home screen, leave Safari and launch the "Mario vs Luigi" app to play the game.

This is a web version of the game, not a native iOS port, set up to run fullscreen on your device. Do not seek help for performance issues, your device may not meet requirements.
On quick method, interacting with any text box will zoom in the screen. This can be fixed by manually zooming out via zoom-out touch gestures on the black borders.