| Achievement | How to unlock
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| Assassin (20 points) | Complete a level in less than 3 seconds.
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| Be Cool (30 points) | Freeze 50 stars in total.
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| Be Water (30 points) | Complete a level without removing your finger. Min 3 slashes required.
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| Blade Runner (20 points) | Get 5 extra blades in a level.
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| Bomb Squad (10 points) | Destroy a Doomstar with a bonus.
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| Bomber (30 points) | Use 5 bomb bonuses in a level.
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| Bonus Master (30 points) | Get 100 bonuses in total.
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| Clean Slasher (20 points) | Complete a level without hitting any metal edges.
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| Combo Master (30 points) | Slash 5 pieces greater than 5% in a row.
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| Comet Killer (10 points) | Destroy a comet with a bonus.
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| Crazy Slasher (30 points) | Make 5000 slashes in total.
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| Crowd-Pleaser (40 points) | Complete a level after Doomstars explode.
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| Dedicated Ninja (30 points) | Play the same level 50 times.
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| Flying Dagger (20 points) | Complete a level before Doomstars explode.
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| Frozen Hell (50 points) | Freeze 150 stars in total.
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| Ghost Hunter (30 points) | Complete a level when ghost stars are invisible.
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| Iron Slasher (20 points) | Slashed away all the metal edges.
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| Monk (70 points) | Get 500 bonuses in total.
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| Nameless Hero (10 points) | Fail when remaining area to slash is less than 1%.
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| Need No Toys (30 points) | Complete a level without using any bonuses. Get minimum 3 bonuses.
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| Over Slasher (20 points) | Slashed away 10% more than required.
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| Perfect Technique (30 points) | Slashed away more than 50% in a single slash.
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| Psycho Slasher (60 points) | Make 10,000 slashes in total.
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| Sleepless Ninja (50 points) | Play the same level 100 times.
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| Super Slash (20 points) | Completed a level with a single slash.
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| Tactical Initiative (20 points) | Get a bonus with your first slash.
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| Talented Ninja (30 points) | Get a bonus with every slash. Get minimum 3 bonuses.
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| Time Bender (30 points) | Complete a level while Buddha bonus is active.
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