In the folder C:Users\AppDataLocalBladesOfTime loof for a the file settings.blk. This file can be opened with a plain text editor like Notepad. Within this file, there's a section called "game_start". Modify the following variables (or add them if they are not there) to enable the cheats.
One-hit-kill enemies. May prevent from completing some tutorial events if they require you to lower the health of an enemy. - devastation:b=yes
God mode. Does not prevent scripted deaths like falling into pits. - godmode:b=yes
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.