Increased health for Cody or Guy

Haggar starts the game with a larger life bar than Cody or Guy. If you want Guy or Cody to have the larger life bar at the start of the game, simply pick Haggar and then let yourself die until all your lives are lost. Continue the game when asked, and then pick either Cody or Guy, and you'll notice that your health bar will be the size of Haggar's despite the fact that you aren't playing as him.

Secret health refill in the Bay Area

In the Bay Area's second section, hit the sign with a fork, knife and piece of meat on it for a full life bar refill.