Blue Mario Bros. 3
Blue Mario Bros. 3 is a hack for the NES.
About this hack
Blue Mario Bros. 3 is a hack for the NES. In short, it improves performance. The full list of changes, the credits and the instructions are on the creators' page.
Playing it
The patch is applied to your own copy of the original game, following the creators' instructions. The game itself is not included and is never linked here.