1)   Super Mario Brothers : Mega Mario 1.5
Mega Mario - Super Mario brothers remake. Similar to Mario Forever!

 2)   Flash Mario Bros 1.0
Flash Mario Bros is classic mario now available for computer. You can pick either mario or luigi, and then advance through levels. As with the original mario, you can become bigger, jump on enemies, become fire mario and more.

 3)   Mega Mario - a free mario game 1.5
Mega Mario - Super Mario brothers 1 remake. Similar to Mario Forever! Mega mario is a free mario game remake. Play with your favorite plumber luigi and go on many great adventures with this fun super mario brothers remake

 4)   MostFun - Super Mario Bros. 3 - Free Unlimited Play Version 2
This is the classic Nintendo game Super Mario Bros. 3. Mario and Luigi once again travel through eight worlds including one where the Goombas and Koopas are bigger than normal.

 5)   MostFun Super Mario Revived - Free Unlimited Play Version 1
Just like old school Mario. Go through the levels collecting coins and avoiding being hurt by the bad guys.