Boss Rush mode:
To unlock Boss Rush mode, complete the game.
Unlockable Difficulties:
To unlock Hard difficulty, complete the game on Normal difficulty. To unlock Extreme difficulty, complete the game on Hard difficulty.
“Sound Test” option:
To unlock the “Sound Test” option, complete the game on Hard difficulty.
Artwork:
Unlock the following artwork in the gallery by performing the corresponding tasks:
ARTWORK – HOW TO UNLOCK
Art #2 – Complete Normal mode with Kage.
Art #4 – Complete Normal mode with Chihiro.
Art #5 – Earn a “B” rank 10 or more times.
Art #6 – Earn a “B” rank 20 or more times.
Art #7 – Earn a “B” rank 36 or more times.
Art #8 – Play for 2 or more hours.
Art #9 – Earn an “A” rank 10 or more times.
Art #10 – Earn an “A” rank 20 or more times.
Art #11 – Earn an “A” rank 36 or more times.
Art #12 – Complete Hard mode with Kage.
Art #13 – Complete Hard mode with Kage.
Art #14 – Complete Hard mode with Chihiro.
Art #15 – Complete Hard mode with Chihiro.
Art #16 – Jump 500 times.
Art #17 – Jump 1,000 times.
Art #18 – Master all Ninjitsu.
Art #19 – Master all Ninjitsu.
Art #20 – Master all Skills.
Art #21 – Master all Skills.
Art #22 – Complete Stage 1 in Expert mode.
Art #23 – Complete Stage 2 in Expert mode.
Art #24 – Complete Stage 3 in Expert mode.
Art #25 – Complete Stage 4 in Expert mode.
Art #26 – Complete Stage 5 in Expert mode.
Art #27 – Complete Stage 6 in Expert mode.
Art #28 – Complete Stage 8 in Expert mode.
Art #29 – Complete Stage 11 in Expert mode.
Art #30 – Complete Stage 12 in Expert mode.
Art #31 – Parry 100 shuriken.
Art #32 – Earn an “S” rank 10 times.
Art #33 – Earn an “S” rank 20 times.
Art #34 – Earn an “S” rank 36 times.
Art #35 – Complete Expert mode with Kage.
Art #36 – Complete Expert mode with Kage.
Art #37 – Complete Expert mode with Chihiro.
Art #38 – Complete Expert mode with Chihiro.
Art #39 – Perform 20 hits in a row.
Art #40 – Perform 50 hits in a row.
Art #41 – Kage maxes Life.
Art #42 – Chihiro maxes Life.
Art #43 – Kage maxes Power.
Art #44 – Chihiro maxes Power.
Art #45 – Kage defeats Boss Rush.
Art #46 – Chihiro defeats Boss Rush.
Art #47 – Kage defeats Boss Rush fast.
Art #48 – Chihiro defeats Boss Rush fast.