Peak Performance / All Potentials in game achievement

[Cyboroso]

How exactly are you supposed to do it? Is it more of a RNG thing?

I'm aware that Mai is the one with least potentials in the game and that 100% entropy gives 4 more potential spaces ,along with shop refreshs and so on .

But even so does anyone know the best strategy for it?

My biggest issue has been ,along with dealing with the economy for shops , is dealing with the Hide Space modifier , I often tend to pick the hidden one unless there is a potential space already for trying to have the chance of landing in a potential space or a advanced battle.

But is it worth it trying advanced battles or should I focus on event spaces and exchange points for shop?

[WardPhoenix]

It's better to remove the entropy shop malus for this achievement (exchange prices and hidden items).
This should put you at 88 Entropy at most, less if you removes the debuff as well (because of the one reducing exchange points). I was more or less at this level when I did the achievements with Mai.

You want to pick specific Mind Crystal :

• Initial Exchange points +200 EP
  
• Eliminating Elite gives 200 EP
  
• One shop item cost 90% less

Pick exchange shop if you have sufficient EP to pick 3 potentials even if they are not cost reduced (more or less 500 EP - but pray they are reduced). If you barely have any EP don't go in the exchange and do a normal space instead.

Advanced battle are good, but they don't necessarely rewards potentials so choose it if you don't have a potential space or if you are skipping a exchange space. There is also some Exchange Points Space which grants a lot of EP. Event space is a gamble.