the japanese version is running an event and it is amazing
there's four sets of dungeons from different games (iv, vii, viii, and x), and when you beat the boss battle you get items (3 types for 3 difficulty levels) that you can trade for:
- new characters
- memory crystals (break level 50 cap)
- 2nd memory crystals (break lvl 65 cap)
for the character and 1st memory crystal trades, you can also get growth eggs with the items if you've got all the characters/crystals or just wanted growth eggs instead
it looks like it includes every character available, with every crystal available and i think a few new ones too. the first two stages are easy enough (difficulty level 20 for the character one and 50 for the first crystal one), the most difficult is 110 which sounds like it'll be too much for me
also going to be a ffvii event tomorrow which adds sephiroth's second memory crystal and it sounds like reno as a character too