Play as Titanium Ranger
Rescue the Titanium Ranger in level 7, then complete the rest of the game. Wait for the credits to finish and save the game. Load the saved game, then start a new game and the Titanium Ranger will be unlocked.

Megazord Arena Characters
Defeat various enemies during the episodes to unlock the same characters in the Megazord Arena.

Megazord Arena Special Attack
Charge your power meter, then press C-Down for a special attack in the Megazord Arena.