Super Mario Bros.: Super Mario Bros. For Super Players

This is a recreation of Super Mario Bros. 2 (or Super Mario Bros. The Lost Levels) on Super Mario Bros. 1 engine. All levels have been recreated, without using any special features from SMB2j. Some of them do have certain changes to ensure a decent gameplay. Now, SMB The Lost Levels feels like an actual add-on or DLC to SMB1 :P Changes include:

-Slight level changes, like in 7-2 or 4-3 to make it possible to perform tough jumps, like additional Koopas or longer platforms.
-World 1-2's warp zones received a huge overhaul, now the part with water and the World 4 warpzone houses warps to Worlds 2 and 3 as well. The original World 2 warp zone (at the end of the main portion of the level) and the World 3 warp zone (accessible via vine) now each lead to the very same room with water in pits.
-No SMB2j graphics, only regular SMB1 graphics, like in SMB For Super Players on SMB Deluxe.
-No Worlds 9 and A-D.
-No upside-down pipes, which may look a bit out of place at times, but won't hamper playability.
-No red piranha plants.
-No poison mushrooms, instead of them usually there are just coins or mushrooms.
-No invisible mushroom blocks, instead there are just invisible coin blocks, bricks with mushrooms, ? blocks with mushrooms or none of them at all.
-No wind and no green spring, 7-3 had to be heavily edited in order to be properly playable.
-No warp zones that will warp you back to prior worlds.
-The ending scene pans out like in SMB1.

It is recommended to play this after completing SMB1, but before taking on the original SMB2j. Special thanks go to ALXR for making the great SMB/SMB2j editors, StudsX, Eden GT and 4matsy for help and bugtesting.

Database match: Super Mario Bros. (World)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: EA343F4E445A9050D4B4FBAC2C77D0693B1D0922
File CRC32: 3337EC46
ROM SHA-1: FACEE9C577A5262DBE33AC4930BB0B58C8C037F7
ROM CRC32: D445F698