Play NBA Games on Emulator Online. We have the best NBA games online for different retro emulators including GBA, Game Boy, SNES, Nintendo and Sega. There are over 53 online NBA games in our collection. All of the games that you see here are without download, pick any and start playing right away. If you enjoy the game, be sure to vote for it and leave a comment. NBA games that started it all back in the day are now playable free within your browser! Start by playing some of our popular NBA online games like NBA Jam, NBA Live 2000, NBA Jam Tournament Edition and Dragonball GT: Final Bout.