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