Complete the following tasks to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", then "My profile", then "View all my games", then the game and view stats.
Angry: Kill 100 enemies during your Time Rewind Berserk buff.
Annihilation Kill: Kill 10 enemies at the same time.
Big Corpse: Defeat Giant Worm.
Brutal Kill: Kill 5 enemies at the same time.
Brutal Lands: Kill the Vicar of Chaos.
Clear the Jungle: Kill the Shaman Boss.
Collector: Find all the notes.
Coral Dash: Get the ability to dash to the corals.
Curious: Find half the notes.
Double Attack: Kill 25 heavy enemies using the Time Rewind double attack.
Dragon: Ayumi receives her Dragon form.
Enemy Dash: Get the ability to dash to enemies.
Experienced: Play 5 Outbreak matches.
Famous Hunter: Kill 1000 enemies in total.
Faster Than You!: Use Counterattack 100 times.
Free to go!: Kill the Gateguard.
Gather Chi: Get the ability to gather Chi.
Grasshopper: Use Dash 30 times without touching the ground.
Hard Times Are Over: Finish the game on the Hard difficulty level.
I'm Rich: Find all the chests in story mode on the Normal difficulty level.
Keeper Is Dead: Finish the game on any difficulty level.
Old Temple: Reach the Sanctuary.
Order Spell: Survive Chaos event.
Out of My Way: Kill an enemy player in an Outbreak match.
Outbreak Hero: Kill each Outbreak boss at least once.
Rain of Bullets: Shoot off Magic Armor from 50 enemies using Time Rewind clones.
Ready To Fight: Find all types of equipment.
Rifle: Find the rifle.
Sky Islands: Leave the Sky Islands.
Time Rewind: Get the ability to rewind time.
Too Hot For You: Kill Brutal Maul without being frozen by his shockwave.
Treasure Hunter: Find all the chests in story mode on the Hard difficulty level.
Unstoppable: Win any Outbreak match.
World of Order: Defeat Skyguard Commander.
Your Fire Is Nothing: Kill the Shaman Boss without taking damage from his massive fire spell.