Acquired all Ninjutsu Techniques

Defeated the "Guardian Ape"

Defeated the "Great Serpent".

Defeated "Genichiro Ashina"

Clear any level on hard difficulty and get at least 100 combo without any modifiers.

Use Mind Wave for the first time.

Dodge 4 bullets at the same time.

Complete the tutorial.

Spend 50,000 koins in the Naknadan shrine

Spill 10,000 pints of blood

Clear any level with faster song speed modifier.

Close an open door by yourself.