Get your Character up to level 25 and your character will be given a bird or a dragon to help fight when you attack your familiar will attack with you.
Bonus characters
First, reach level 10 with your character. Then at the selection screen, hold Turbo and choose the same character.
Fun Experience
I especially like doing this. Choose the warrior and go to the valley of fire(the very first level). Now, DO NOT destroy the generators. When the smallest ogres come out, walk around slowly. Many ogres will come out. When they hit you use your largest attack. You drive the ogres nuts, and gain piles of exp.
New Weapon
To get a new weapon for any of the characters you must level them to level 50. Your weapon should change into a more ornate one.(for all characters, including specials.)
Permanent anti-death
Successfully complete the game to receive permanent anti-death, which allows you to steal health from death.
Play as a Dragon
To play as a dragon, raise Warrior's level to 10. Then press RIGHT, up-C, down-C, Z-trigger, LEFT, left-C, A, Start. (A bell confirms correct entry.) Warrior explodes into tiny fragments that are then are fused into body of a dragon.
Play as Falconess
To play as Falconess WITHOUT CODES, collect 50 coins in the Castle Treasury bonus round before time runs out. The portal to the bonus round is accessed by standing in front of the star-studded door that is near the end of the Castle Treasury level. Initially hidden from view, the door whisks players into the future - to a bonus round on a space station.
Alternately, to play as Falconess WITH CODES, raise Valkyre to level 10. Then, at the character selection screen, hold Turbo and choose the same character. Valkyre will turn into Falconess!
Play as Jackal
To play as Jackal WITHOUT CODES, collect 50 coins in the Ice Camp bonus round before time runs out. The portal to the bonus round is accessed by standing in front of a star-studded door that is near the end of the Ice Camp level. (In the cargo maze near the end of the level, head to the upper-right portion of the maze and walk up the ramp. Shoot the boxes to reveal a door with a star on it. The star-studded door will transport players to a bonus level on the docks.)
Alternately, to play as Jackal WITH CODES, raise Wizard to level 10. Then, at the character selection screen, hold Turbo and choose the same character. Wizard will turn into Jackal!
Play as Minotaur
To play as the Minotaur WITHOUT CODES, collect 50 coins in the Mountain Cliff bonus round before time runs out. The portal to the bonus round is accessed by standing in front of the door (with skull and crossbones) that is near the end of the Mountain Cliff level. The door is near a ramp on the edge of a cliff and will transport players to a classic Gauntlet bonus round.
Alternately, to play as Minotaur WITH CODES, raise Warrior to level 10. Then, at the character selection screen, hold Turbo and choose the same character. Warrior will turn into Minotaur!
Play as nude Valkyre
Enter "NUD" as a name and "069" as a password.
Play as Pojo the Chicken
Enter "EGG" and "911" as a password.
The Flame of Tarkana
The Flame of Tarkana can be found in the Spire level of the Skytown. This weapon is useful in defeating the Yeti in the Ice Domain.
The Ice Axe of Untar
The Ice Axe of Untar can be found in the Armory level of the Valkyrie's Castle. This weapon is useful in defeating the Red Dragon in the Warrior's Mountain.
The Scimitar of Rasha
The Scimitar of Rasha can be found in the Cave level of the Warrior's Mountain. This weapon is useful in defeating the Chimera in the Valkyrie's Castle.
Unlimited gold
Simply name yourself 10000k and no matter what everytime you spawn in the tower (including after visiting the store) you will have 10000 gold on your person.