While at the Start Screen (with Batman and Sin Tzu side-by-side), hold L + R and press Left, Down, Left, Right, Left, Left, Down, Right.

All Upgrades

While at the Start Screen (with Batman and Sin Tzu side-by-side), hold L + R and press Down, Up, Down, Left, Down, Right, Up, Down.

Alternative Costume

Beat the game on Easy Difficulty.

Dark Knight Difficulty

While at the Start Screen (with Batman and Sin Tzu side-by-side), hold L + R and press Right, Up, Up, Right, Left, Down, Right, Up.

Making of Sin Tzu

Beat the game.

Unlimited Combo Meter

While at the Start Screen (with Batman and Sin Tzu side-by-side), hold L + R and press Left, Right, Down, Up, Up, Down, Right, Left.

Unlimited Health

While at the Start Screen (with Batman and Sin Tzu side-by-side), hold L + R and press Up, Right, Up, Left, Down, Left, Down, Right.