Context: While Nintendo never released an adapter for playing NES games on the SNES (though the instructions included a way to connect both consoles to the same TV by either daisy chaining the RF switches or using AV outputs for one or both systems), the Super Game Boy adapter cartridge allows games designed for Nintendo's portable Game Boy system to be played on the SNES. The Super Game Boy touted several feature enhancements over the Game Boy, including palette substitution, custom screen borders, and (for specially enhanced games) access to the SNES console. Japan also saw the release of the Super Game Boy 2, which added a communication port to enable a second Game Boy to connect for multiplayer games.

Question: How did Nintendo say an NES and SNES could be used on the same TV?
Answer: either daisy chaining the RF switches or using AV outputs for one or both systems

Question: Which other game system's cartridges could be adapted to the SNES?
Answer: Game Boy

Question: What improvements did the Super Game Boy have over the Game Boy?
Answer: palette substitution, custom screen borders, and (for specially enhanced games) access to the SNES console

Question: Where was the Super Game Boy 2 released?
Answer: Japan

Question: What did the Super Game Boy 2 add?
Answer: a communication port to enable a second Game Boy to connect for multiplayer games

Question: In what country was the SNES released?
Answer: Unanswerable

Question: What did the Game Boy add for multiplayer games?
Answer: Unanswerable

Question: What enhancements did the Game Boy have?
Answer: Unanswerable

Question: What allows Game Boy games to be played in Japan?
Answer: Unanswerable

Question: What did Super Game Boy never release for playing NES games on the SNES?
Answer: Unanswerable