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