Resonance of Fate Cheats

Clear Chapter 1 (10): Cleared Chapter 1.
Clear Chapter 10 (15): Cleared Chapter 10.
Clear Chapter 11 (15): Cleared Chapter 11.
Clear Chapter 12 (15): Cleared Chapter 12.
Clear Chapter 13 (15): Cleared Chapter 13.
Clear Chapter 14 (15): Cleared Chapter 14.
Clear Chapter 15 (15): Cleared Chapter 15.
Clear Chapter 2 (15): Cleared Chapter 2.
Clear Chapter 3 (15): Cleared Chapter 3.
Clear Chapter 4 (15): Cleared Chapter 4.
Clear Chapter 5 (15): Cleared Chapter 5.
Clear Chapter 6 (15): Cleared Chapter 6.
Clear Chapter 7 (15): Cleared Chapter 7.
Clear Chapter 8 (15): Cleared Chapter 8.
Clear Chapter 9 (15): Cleared Chapter 9.
Clear Prologue (10): Cleared the prologue.
Clear the Game (15): Cleared the game! Congratulations!
Customaestro (15): Laying out parts can become quite a puzzle.
Disrespect Your Elders (30): Defeat the Elderly Man.
Extreme Spiker (15): There are more ways to deal extra damage than just a bonus hit.
First Contact (10): This is just the beginning.
Four-Terminal Chain (15): Connect terminal effects to make them even more effective.
Hero Actor (15): Spend enough time in combat, and you'll cross this threshold.
Hundred Plus Club (15): This is the natural product of having weathered countless battles.
King of Neverland (30): Defeat the boss of Neverland.
Maiden Mission (10): This is what pays the bills.
Material Collector (15): They sometimes yield useful parts and materials.
Material Creator (15): Become a regular down at the local shop.
Professional Hunter (15): Their lives have not been given up in vain.
Resonance Miser (15): It'll take all three of you to tackle this challenge.
Shopaholic (15): It's your money. Spend it how you like!
Spite Monger (15): Perfect the timing for landing a bonus hit.
Stardust Hunters (90): Earn a star in every Arena rank.
Tera-Driver (30): Play enough that the game loads over a terabit of data.
The Iron Fist (15): A true warrior doesn't fear getting up close and personal.
The Legendary Hunter (90): Clear all missions.
Thousand Pitcher (15): Throw as hard as your little arms can stand.
Tri-Attacker (15): You'll need to cooperate as a team of three.
Unison Assault (15): You've defeated two or more enemies in a single attack.

Infinite Money
Chapter 6 or later required Combat Scope Betas cost 3000 gold, one glass shard, and one scrap of iron to make. The wandering merchant sells glass shards and iron scraps for 200 and 150 gold respectively. Combat Scope Betas sell for 4100. Profit is 750 per scope, multiplied by 999, is 749250. The best time to do this is chapter 6~7, before the merchant starts wandering she is always at the Waterless Bridge. In chapter 8 plus, she can be at Forsaken, the Waterless Bridge, or the Righteous Tower. Your best bet then is to get into an enemy counter, run away, and check the location to see if she is there. Time phase changes also change her position. Repeat as necessary.

Staying in Same Costume
In Chapter two of a new game +, go into ReanBell's (Leanne) bedroom and press x at her wardrobe. There is a secret button which when pressed, will allow you to keep Reanbell in her current costume rather than going into the pig t-shirt in the cutscene.