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 an extensive hack of the original SMB with all 32 worlds changed. Also virtually all sub areas are aligned with the main areas so you won't gain any shortcuts in the level by using them but you can usually find more coins/1UPs in these areas. (although if you lose a life in some of these sub areas you will be sent to the beginning of the world even if you passed a checkpoint prior however some sub areas may send you TO the checkpoint after losing a life.)

As always it's a good idea to spend time collecting coins/1UPs in earlier worlds to use in later worlds. Lastly virtually all castles have multiple paths. These, like the sub areas, are aligned with the main castle area.

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