Dragon Ball Z: The Legacy of Goku

Do not try to walk up to them, as they will run away. You can fly faster than you can walk. Fly very close to them and press A after landing on the floor to catch/hit them. When you are done, you get the Kamahamaha Wave.

If you are wandering around in an area and are low on health, you can try this (not-so-secret) trick to recover quickly. Save your game, then shut off the game and turn it back on again. When you appear back where you left off, you'll be back at full health/Ki without even using items!

Successfully complete the game (including all the quests and sidequests). Start a new game to begin with unlimited energy. After completing the game, you should have one of two things: unlimited energy or the ability to carry four Senzu Beans.

In the options menu, highlight "Text Speed", hold L+R+Up (thus now highlighting "Exit"), and press A to access a debug menu containing a level select, sound test, sprite viewer, and photo gallery.

Use the following trick to defeat any Boss without you hardly getting hurt. First, run away from him. Then, when he is charging up for a Ki-blast, go to the side of him and hit him with your own energy blast. This takes longer, but is more effective.

To defeat Raditz, Nappa, and Vegeta. fly up to a higher place than the normal ground (such as a small mountain). Then, keep hitting them with Ki burst until you kill them.

When fighting Vegeta and Nappa, you can defeat them by running up to them and making them chase you. When they get close, stop so that they will be to your left side, facing you and slightly upwards. You will be able to stay in that position, and they will not hit you at all. You can even reload the Ki blast to do major damage.

When Raditz, Nappa or Frieza is powering up a Ki blast, go to the place that it will hit you and start flying. Do not move at all. It will hit you and you will fall. You will be walking, but the game will still consider you as flying. Punch the Boss until he is defeated.

Note: Solar Flare and Kamehameha Wave are needed for this trick. Stun the Boss long enough, charge the Kamehameha Wave, then hit and run.