Bayonetta

Complete the indicated task to unlock the corresponding item in Rodin's shop for purchase.

Bracelet Of Time: Complete the game in under 3 hours under Normal or higher difficulty.
Climax Bracelet: Get 101 Umbran Tears Of Blood.
Eternal Testimony: Get 50 Umbran Tears Of Blood.
Immortal Marionette: Complete the game under the Very Easy or Easy difficulty.

Complete all chapters under the same difficulty setting. Load the cleared saved game file then go to "Gates of Hell". Enter the "Rodin's Treasure" menu and purchase the "Super Mirror" for 100,000 Halos to get the Umbran Komachi (Kimono). The other alternate costumes (listed as "Couture Bullets") will now be unlocked for purchase for 100,000 Halos. Note: To change costumes, press R1 at the "Chapter Start" screen, then choose "Costume Change". The available options for purchase are as follows.

Couture Bullet (d'Arc)
Couture Bullet (Nun)
Couture Bullet (Old)
Couture Bullet (P.E. Uniform)
Couture Bullet (Queen)
Couture Bullet (Umbra)
Couture Bullet (Various)

In Chapter 2, after Verse 3 onward on any difficulty, walk around the plaza from Verse 3 outside of combat and stand in front of one of the telephones and input one of the codes below. The left phone by the stairs is used for Weapon unlocks, the right phone for Accessories and the stand alone phone on the other end of the plaza is for Characters. Next to the description is the required amount of Halos you must have in your inventory at the time to unlock the matching secret. All directions are input using the D-Pad. These codes allow the immediate unlock of the listed weapon/accessory/character without completing the requirements.

Hold L1 + L2 during the entire opening cinematic of Chapter VIII or XIV to hear retro Afterburner and Space Harrier music during the stages.

Once you’ve beaten the game, you’ll be able to access a bonus gallery from the game’s main menu. It includes concept art, cutscenes, and other extras.

Use the following trick for the flashback battle at the start of Chapter 2 under the Hard difficulty setting. Once the battle starts and Jeanne jumps down, shoot her. She will block most of the bullets, but soon she will crouch and fire her guns in a quarter-circle. During this time she is vulnerable. You can attack her now, but it is recommended that you just shoot her and dodge her bullets. Once she is done, her next attack will likely be a Wicked Weave. You can see it coming when a red circle appears under her. If you dodge her Wicked Weave, you will enter Witch Time. However, it does not last long. Make the most of this time. Either keep shooting her if you are too far away, or move close to get a combo in and deal some real damage. There is a chance that Jeanne will try to move closer instead of using a Wicked Weave; put some distance between the both of you by dodging. To get the most attacks in, always dodge towards her when dodging her bullets and Wicked Weave. Make sure you are in Witch Time before attacking.

In Chapter 2, Verse 3 or later, walk around the plaza from Verse 3 when not in a fight. Stand in front of the specified telephone and enter one of the following codes below to activate the corresponding cheat function. The "Weapons" phone is the left phone by the stairs. The "Accessories" phone is on the right. The "Characters" phone is the stand alone phone on the other end of the plaza. Note: A minimum number of Halos is required in order to activate the code.

Bracelet Of Time
Stand in front of the "Accessories" phone, then press Up(4), Down(4), Left, Right, Left, Right, L2. This code requires 3 million Halos to activate.

Climax Bracelet
Stand in front of the "Accessories" phone, then press Up(4), Down(4), Left, Right, Left, Right, R2. This code requires 5 million Halos to activate.

Eternal Testimony
Stand in front of the "Accessories" phone, then press Up(4), Down(4), Left, Right, Left, Right, R1. This code requires 2 million Halos to activate.

Jeanne
Stand in front of the "Characters" phone, then press Up(4), Down(4), Left, Right, Left, Right, Circle. This code requires 1 million Halos to activate.

Little Zero
Stand in front of the "Characters" phone, then press Up(4), Down(4), Left, Right, Left, Right, Square. This code requires 5 million Halos to activate.

Bazilolions
Stand in front of the "Weapon" phone, then press Up(4), Down(4), Left, Right, Left, Right, Triangle. This code requires 1 million Halos to activate.

Pillow Talk
Stand in front of the "Weapon" phone, then press Up(4), Down(4), Left, Right, Left, Right, X. This code requires 1 million Halos to activate.

Rodin
Stand in front of the "Weapon" phone, then press Up(4), Down(4), Left, Right, Left, Right, L1. This code requires 5 million Halos to activate.

Unlockable chapters in the game.

To unlock the extra costumes, you have to beat all chapters on Normal first. Load your Clear Data, go to "Gates of Hell", and then go to "Rodin's Treasure" menu. You'll see a "Super Mirror" there, which cost 100.000 Halos. Purchase this, and you'll unlock the rest of the costumes (Couture Bullets). To change costumes, press "R1" at the Chapter Start screen, go to "Costume Change", and then choose your costume there.

To unlock these extra difficulty, you need to beat all chapters for one difficulty.