If you press - between rounds you will hear a chime. At the start of the next round your health will increase. This can be done once per fight.

When you're KO'd and the animation starts, quickly press 1 and 2 repeatedly (Wiimote controls). If done right you'll get another chance.

If you face Donkey Kong in Last Stand mode, you unlock him to fight for Exhibition mode.

In Exhibition mode complete the 3 challenges on any character and unlock their audio gallery

As you're progressing through the game, simply view each boxer's intro and it'll unlock in the gallery mode.

Win 10 bouts in Mac's Last Stand.

After you have finished Condendor Career or have viewed it under "Options," you will notice that you can still use your cursor and you will notice a score display at the top of the screne. The object is to correct the misspelled names of the developers and to remove the names of your oppenents. Be on the lookout for a letter of a developer's name to look different then it should. Click on the name and it will turn green and be corrected. Be careful not to click it again or hit one that is already correct since you won't get points for the correction. If you click on one of your oppenent's names they go by, they will vanish from the screne.

Alternatively tap the 1 and 2 buttons (or "drum" the remote and nunchuk) to regain health after knocking an opponent down.