Where is super brawl 3?

There is no game called "Super Brawl 3". It's likely you're thinking of a different game or have the name slightly misremembered.

To help me understand which game you're referring to, could you tell me:

* What kind of game is it? (Fighting, platformer, RPG, etc.)

* What platforms was it released on? (Super Nintendo, PlayStation, PC, etc.)

* What are some of the characters or features you remember?

Once I have more information, I can try to help you find the game you're looking for.