Thanks to this collection some details became clear. Super Mario Bros. 2 it was made only for Japan and on a cursor of Super Mario Bros. (with some changes). Other Super Mario Bros is known to foreign gamers. 2. It is a clone of Doki Doki Panic. And names now are as follows: 1) Super Mario Bros. 2 (J) - Super Mario Lost Level (UE); 2) Super Mario Bros. 2 (UE) - Super Mario USA of B BS versions is one level from three subtotals. It is necessary to pass all and to collect as much as possible prizes. A game is emulated badly. Because of this Mario does not kill enemies with jumps, and can quietly stand on them. It is impossible to collect prizes too.