Here is the full list of all 43 BlazBlue Entropy Effect achievements.
Having selected all Generic Tactics.
Having selected all Blade Tactics.
Having selected all Umbra Tactics.
Having selected all Toxin Tactics.
Having selected all Light Tactics.
Complete round 3 in a [Mind Challenge].
Having selected all Fire Tactics.
Having selected all Electricity Tactics.
Upgrade your mind to Lv.60.
Spend 20000 Exchange Points at [Exchange Space] in total.
Having selected all Ice Tactics.
As Ragna, defeat Susanoo.
Choose 10 unique Entropy Effects in a single Mind Training run.
Obtain [Better Luck Next Time] in [Sortitio Space].
Complete Space Omega with at least 50 Entropy.
As Kokonoe, lose to Arakune.
As Hakumen, lose to Susanoo.
Complete [Mind Training] without inheriting abilities from your Evotypes.
Complete any phase of [Mind Training] without taking damage.
Having selected 200 unique Tactics
Reach the end of the story.
Complete [Mind Training] without spending Exchange Points.
Have selected 100 unique Potentials
Unlock 7 Prototypes.
Obtain a [Potential] in [Sortitio Space].
Implant 6 Mind Crystals.
Defeat the Elite Sample in [Space Omega] for the first time.
Have selected 50 unique Potentials
Having selected 100 unique Tactics
Complete [Space Omega].
Complete [Mind Training] with 7 Potentials equipped.
Defeat 100 Elite Samples in total.
Complete round 1 in a [Mind Challenge].
Complete round 2 in a [Mind Challenge].
The best Evotype Rating reaches 900.
Carry more than 300 Exchange Points when [Mind Training] is over.
Access [Sortitio Space] 5 times in a single [Mind Training] session.
Complete [Sakura City] for the first time.
Complete [Ruins] for the first time.
Complete [Night City] for the first time.
Play [Mind Training] with 2 Legacy Skills equipped.
Get a Phenomenon Fragment for the first time.
Complete [Research Base] for the first time.