Play Ninja Games on Emulator Online. We have the best Ninja games online for different retro emulators including GBA, Game Boy, SNES, Nintendo and Sega. There are over 70 online Ninja 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. Ninja games that started it all back in the day are now playable free within your browser! Start by playing some of our popular Ninja online games like Pokemon Greninja-Z, Ninja Gaiden, Teenage Mutant Ninja Turtles and Teenage Mutant Ninja Turtles: Turtles in Time.