Play Ninja Games on Emulator Online. All the best Ninja games online for different retro emulators including GBA, Game Boy, SNES, Nintendo and Sega. There are many online Ninja games in the 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 within your browser! Start by playing some popular Ninja online games like Pokemon Greninja-Z, Teenage Mutant Ninja Turtles: Turtles in Time, Ninja Gaiden and Teenage Mutant Ninja Turtles.