http://www.youtube.com/watch?v=f1GkoTfXKJs

Look at 3:27 onwards... it's short but you can see some diferences like Max old sprite fighting zanza where Barbon should be, diferent backgrounds (like the place where blaze fights jack) etc...

Adn yes, it's the same crappy music as that sonic 2 beta video I uploaded LONG time ago under the Belzeemon username

Edit: Also more sonic 2 beta godness at 5:30

Guess it's the same beta of that other video I mentioned earlier

Only this time when robotnick is defeated he doesn't face the wrong way... maybe an even later beta? the vid was published a month later that the one I uploaded... who knows

Yeah, I checked my prototype copy of Bare Knuckle 2, and the sprites are the same, but the boss has be changed for that area to the final boss. Unfortunetly, you can beat him down, but he just never ever ever stops respawning.