Mario Bros. (NES)
This game has a prerelease article
The NES Mario Bros. is a port of the arcade game, minus the intermissions.
A "BONUS COIN" graphic. It's a more plain version than the one seen in the arcade version during the first stage intermission, but since this port doesn't have the intermissions, it goes unused.
Interestingly, this graphic was removed in the "Classic Serie" version.
Mario Bros. Classic Serie
In 1993, an enhanced version was released in Germany and Italy under the label "Classic Serie". In addition to retaining graphical and gameplay improvements from Kaettekita Mario Bros., it restores the missing stage intermissions and adjusts the music and gameplay speed to match the 50Hz PAL refresh rate.