Ys: Origins - All Arena Stages (Nightmare Mode - Arena Master Trophy)
Finish the game will all 3 characters on Normal or higher difficulty, meaning you can also try on Hard. With that done you will unlock nightmare and very easy difficulty. During this you will also earn trophy for all monster entries and for beating the game will all 3 characters. Now the real fun begins. First of all, you will need to visit newly unlocked Bonus Shop to buy Extra versions of all 3 characters.
0:01 - Beat game on Normal or Higher with all 3 characters
1:35 - Buy all 6 Arenas in Bonus shop - beating stages grand SP
1:52 - Arena Stage 1 Nightmare Mode (Wailing Blue)
4:19 - Arena Stage 2 Nightmare Mode (Flooded Prison)
6:37 - Arena Stage 3 Nightmare Mode (Guilty Fire)
10:10 - Arena Stage 4 Nightmare Mode (Silent Sands)
18:18 - Arena Stage 5 Nightmare Mode (Blighted Blood) - This one is to grind SP
21:19 - Arena Stage 6 Nightmare Mode (Demonic Core)
28:31 - Buy Extra versions of Yunica, Hugo and Toal
To earn Shoplifter trophy, first you need to beat the game on nightmare mode using EXTRA characters you bought. Good luck with that. After that you can buy last thing in Bonus shop.
By beating Arena Stages on Nightmare mode you will earn Arena Master Trophy.
Full Ys: Origins Guide Playlist:
https://www.youtube.com/playlist?list=PLRjGpBTb383ThNc8OJwa1r212gHcxhS6q