1st match[edit]
Bald Bull is middle-of-the-road: fairly easy to defeat, but probably a tough opponent the first few times. This is where the game starts getting harder, since you cannot just keep pounding him into submission. You have two options: waiting for him to make a move, dodging, and countering with jabs to the face, or throw a punch you know he will block, hoping it will induce him to make a move which you can dodge and counter. For instance if you punch at him and he ducks, you know you should dodge immediately because he will throw an uppercut.
His special move is the Bull Charge. This move will automatically knock you down if it connects. You have two options: dodge it and then throw a jab at him, or jab him right after his second hop. Body blows actually will knock him out of the bull charge, but the timing is slightly different. Err on the side of punching too late rather than too early, but you don't have too much room to make a mistake. It is still not difficult to do once you know the timing. If your punch connects it will knock him down. This makes him pretty easy to beat if you can get the timing right consistently.
Note: Bald Bull's jab is much more difficult to counter with a right cross than any other opponent.
One final note: Bald Bull will often punish you for throwing a knockout punch when he's not stunned. He will often duck and retaliate before you can move. You will also encounter this difficulty with Pizza Pasta, then every boxer throughout the rest of the game.
Title defense[edit]
If you can defeat Piston Hurricane again, Bald Bull's not so tough. His telegraphs are pretty easy to spot and they are the key to bringing him down: just hit him while he's doing a telegraph, or dodge and punch. He will only do his Bull Charge one time and it has a slight change: sometimes after the first hop he will hop back instead. Throw your punch as soon as you see him hop forward a second time. It's much harder to time correctly than before unless he doesn't hop back.
When you fill your KO meter, Bald Bull becomes more defensive and predictable. He occasionally throws a series of jabs. He also occasionally attempts an uppercut. Sometimes he'll even interrupt his jabs to throw an uppercut. When he uppercuts, dodge. You can land a jab and hook immediately afterwards. If he jabs three times in a row, you can throw a right hook, and knock him out of his final (slightly delayed) jab.