

Mari0 2 will not be backwards compatible with previous releases - it is an entirely new game.Super Mario Run is Nintendo's first mobile game featuring one of its main mascots.The game will feature a brand new animation of the logo as its splash screen.Other possible characters (if there is time) include Wario, Waluigi, Atlas, P-body, Crash Bandicoot, Yoshi, Gordon Freeman, Princess Peach, and Rainbow Dash. Aside from the obvious Mario, he also plans to make Chell, Luigi (based on his sprites in Super Mario All-Stars) and Bendy (a character from Portal 2 DLC). Custom characters will also also return, now handled mostly by HansAgain.Animations will also return, powering more of the game's events and transitions such as end-of-level events.Custom enemies will be expanded from Mari0: SE into a more powerful Actor system.The editor has received several substantial improvements over the first game, with new tools including selection (rectangle and magic wand), copy and paste, fill bucket, zooming/resizing the window, multiple tilesets, stamps (groups of tiles), layers, and more.

Portals can even rotate freely, although this may not be used at release.

The next day, Maurice streamed "Secret Mari0 2 development", attempting to code pixel-based physics into the game. He commented that he should just make the rewrite based off SMB3 instead at that point, and later requested sprites of Mario with a portal gun in the SMB3 style. On October 4th, 2017, Maurice reworked portals with the ability to be sloped.

Since then, he has posted regular updates on the Discord server. In September 2017, Maurice started rewriting some of Mari0's 5-year-old code to be more optimized, and to run on 3DS. Although Turtle had previously attempted a 3DS port, it was was unsuccessful. Mari0 2 began as a project to port the game for TurtleP's Love Potion, which is a port of Löve to 3DS homebrew. It's a rewrite I started and then I made it not bad so now it supports angled portals in arbitrary positions, runs better, and other stuff.
