Successfully complete the game on the Hard difficulty to unlock the Extreme difficulty.
Successfully complete the game on the Hard difficulty to unlock the 'Sound Test' option.
Successfully complete the indicated task to unlock the corresponding artwork in the gallery:
| Art #15 | Successfully complete Hard mode with Chihiro. |
| Art #16 | Jump 500 times. |
| Art #5 | Gain a 'B' rank 10 or more times. |
| Art #40 | Perform 50 hits sequentially. |
| Art #12 | Successfully complete Hard mode with Kage. |
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| Art #18 | Master all Ninjitsu. |
| Art #44 | Chihiro maxes Power. |
| Art #21 | Master all Skills. |
| Art #4 | Successfully complete Normal mode with Chihiro. |
| Art #17 | Jump 1,000 times. |
| Art #33 | Gain an 'S' rank 20 or more times. |
| Art #42 | Chihiro maxes Life. |
| Art #23 | Successfully complete Stage 2 in Expert mode. |
| Art #35 | Successfully complete Expert mode with Kage. |
| Art #28 | Successfully complete Stage 8 in Expert mode. |
| Art #7 | Gain a 'B' rank 36 or more times. |
| Art #45 | Kage defeats Boss Rush. |
| Art #9 | Gain an 'A' rank 10 or more times. |
| Art #19 | Master all Ninjitsu. |
| Art #25 | Successfully complete Stage 4 in Expert mode. |
| Art #14 | Successfully complete Hard mode with Chihiro. |
| Art #20 | Master all Skills. |
| Art #10 | Gain an 'A' rank 20 or more times. |
| Art #36 | Successfully complete Expert mode with Kage. |
| Art #8 | Play for 2 or more hours. |
| Art #34 | Gain an 'S' rank 36 or more times. |
| Art #32 | Gain an 'S' rank 10 or more times. |
| Art #31 | Parry 100 shuriken. |
| Art #47 | Kage defeats Boss Rush fast. |
| Art #30 | Successfully complete Stage 12 in Expert mode. |
| Art #22 | Successfully complete Stage 1 in Expert mode. |
| Art #24 | Successfully complete Stage 3 in Expert mode. |
| Art #38 | Successfully complete Expert mode with Chihiro. |
| Art #11 | Gain an 'A' rank 36 or more times. |
| Art #41 | Kage maxes Life. |
| Art #39 | Perform 20 hits sequentially. |
| Art #43 | Kage maxes Power. |
| Art #13 | Successfully complete Hard mode with Kage. |
| Art #26 | Successfully complete Stage 5 in Expert mode. |
| Art #46 | Chihiro defeats Boss Rush. |
| Art #37 | Successfully complete Expert mode with Chihiro. |
| Art #29 | Successfully complete Stage 11 in Expert mode. |
| Art #6 | Gain a 'B' rank 20 or more times. |
| Art #2 | Successfully complete Normal mode with Kage. |
| Art #27 | Successfully complete Stage 6 in Expert mode. |
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| Art #48 | Chihiro defeats Boss Rush fast. |
Successfully complete the game to unlock the Hard difficulty.
Successfully complete the game to unlock Boss Rush mode.
