Super Mario Bros. is a platforming game for the Nintendo Entertainment System released in 1985. When Bowser invades the Mushroom Kingdom, it's up to Mario to stop him and save the Princess.

This is a ROM hack of Super Mario Bros. starring plumbers Jario and Duigi. Choose either Jario and Duigi, each equipped with a different set of physics, and set out to save the Mushroom Princess from King Trowser. In their quest, they will have to journey through four brand-new worlds filled with new set pieces and enemies lurking around every corner. Do you have what it takes to rescue the Mushroom Kingdom?

v1.1 Revision Details:
-Errors with 4-4 ending sequence corrected (Mushroom Princess and all ending text now appear).
-World select is no longer enabled after completing 5-1 in order to keep the All Levels route more interesting.
-Duigi is no longer erroneously referred to as Jario on the Game Over screen.
-Trowser no longer appears as a Spiny when killed with fireballs.
-Minor change to World 4-3 made to prevent player from possibly being stuck until a time up.
-New inputs recorded for the title screen demo.

Database match: Super Mario Bros. (World)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: EA343F4E445A9050D4B4FBAC2C77D0693B1D0922
File CRC32: 3337EC46
ROM SHA-1: FACEE9C577A5262DBE33AC4930BB0B58C8C037F7
ROM CRC32: D445F698