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