20 Em 1 is a unique Brazilian release. It's a basic cartridge consisting of twenty different, and generally horrible titles. This is basically the SMS equivalent of Action 52, except that the games are more playable overall and have much better graphics. The cartridge is usually pretty easy to find, but the manual and box are not. The manual is usually elusive because many Brazilians threw them out (for most SMS releases). The box, however, is even more complicated. 20 Em 1, in "complete" form, came packaged as a special release with the Brazilian Master System III Compact model. This is the only way you can create a "complete" copy.