Play Warner Games on Emulator Online. We have the best Warner games online for different retro emulators including GBA, Game Boy, SNES, Nintendo and Sega. There are over 4 online Warner 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. Warner games that started it all back in the day are now playable free within your browser! Start by playing some of our popular Warner online games like Batman Returns, Tiny Toon Adventures: Buster's Hidden Treasure, Animaniacs and Batman Forever.