BlazBlue Entropy Effect is a 2D action roguelite from 91Act, and it is not a fighting game, which is the first thing most people get wrong about it. It borrows the BlazBlue cast but plays as a side-scrolling run-based action game: Early Access opened on 15 August 2023 and version 1.0 landed on 14 February 2024, with the Steam page listing sixteen playable characters. A run is called Mind Training and moves through five fixed stages: Night City, the Laboratory, the Ruins, Sakura City, and Space Omega.
BlazBlue Entropy Effect features distinct areas with increasing difficulty. This guide covers every major location in progression order: what to do, what to get, and when to move on. For the step-by-step path, see our walkthrough.
Area Progression Order
| Order | Location | Difficulty | Key Rewards | Recommended Build |
|---|---|---|---|---|
| 1 | Night City | Run phase 1 of 5 | First tactic slots, early Potentials, AP toward a Prototype Analyzer | Hakumen |
| 2 | Laboratory | Run phase 2 of 5 | Additional tactic upgrades, Evotype Talent opportunities | Hakumen |
| 3 | Ruins | Run phase 3 of 5 | Mid-run Potentials, stronger tactic tiers | Ragna the Bloodedge |
| 4 | Sakura City | Run phase 4 of 5 | Late tactic upgrades, Black Market purchases | Ragna the Bloodedge |
| 5 | Space Omega | Run phase 5 of 5 | Extra Potentials from bonus bosses, run completion, Susano'o achievements | Ragna the Bloodedge |
Night City: Starting Area
The first phase of Mind Training. Community wikis list the Watcher and the Sweeper as the two possible bosses here, and the stage rolls one of them at random.
| Attribute | Detail |
|---|---|
| Difficulty | Run phase 1 of 5 |
| Key Rewards | First tactic slots, early Potentials, AP toward a Prototype Analyzer |
| Recommended Build | Hakumen |
| Key Equipment | Skill tactics |
What to Do Here
- Learn the basics of Mind Training stage order. This is where you practice without heavy punishment.
- Collect starting resources and your first equipment upgrade.
- Clear all main content before moving to Laboratory.
- If you're struggling, read our beginner's guide.
Laboratory: Early Game
The second phase in the fixed order given by official patch notes. Community listings put the Sand Serpent and the Tree of Origin as the stage's boss pair.
| Attribute | Detail |
|---|---|
| Difficulty | Run phase 2 of 5 |
| Key Rewards | Additional tactic upgrades, Evotype Talent opportunities |
| Recommended Build | Hakumen |
| Key Equipment | Skill tactics |
What to Do Here
- Focus on mastering Tactic Codex slots. It's critical from this point on.
- Farm for Skill tactics if you don't have it yet.
- Complete all objectives for maximum rewards.
- Prepare for the difficulty spike in Ruins.
Ruins: Mid Game
The third phase, and the point where a run with scattered tactic families starts falling behind. Community wikis name the Defiling Eye and Arakune as the bosses here.
| Attribute | Detail |
|---|---|
| Difficulty | Run phase 3 of 5 |
| Key Rewards | Mid-run Potentials, stronger tactic tiers |
| Recommended Build | Ragna the Bloodedge |
| Key Equipment | Skill tactics |
What to Do Here
- This is the main skill check. Bring an optimized build.
- Attack tactics becomes accessible here. Prioritize getting it.
- Master Evotype abilities for the boss encounters.
- Check our boss guide if you get stuck.
Sakura City: Late Game
The fourth phase. Official patch notes confirm NAN-FIRE BITE as a Sakura City boss, and community listings pair it with Oread. Black Market and Event rooms were added to the run pool by later patches.
| Attribute | Detail |
|---|---|
| Difficulty | Run phase 4 of 5 |
| Key Rewards | Late tactic upgrades, Black Market purchases |
| Recommended Build | Ragna the Bloodedge |
| Key Equipment | Attack tactics |
What to Do Here
- Full build optimization is expected by this point.
- Attack tactics should be your primary, fully upgraded.
- Legacy skills between runs mastery starts mattering here.
- Farm resources for the push into Space Omega.
Space Omega: Endgame
The final phase, a randomly generated labyrinth ending at Susano'o. Defeating Elite Enemies found along the way applies a debilitating effect to Susano'o, so clearing them first makes the final fight noticeably easier.
| Attribute | Detail |
|---|---|
| Difficulty | Run phase 5 of 5 |
| Key Rewards | Extra Potentials from bonus bosses, run completion, Susano'o achievements |
| Recommended Build | Ragna the Bloodedge |
| Key Equipment | Attack tactics |
What to Do Here
- This is endgame. Best-in-slot gear and a perfected build are mandatory.
- See our boss guide for endgame fight strategies.
- The reward loop: clear content → upgrade → push harder content.
- Experiment with Taokaka for variety once you've mastered the meta.
Exploration Tips
- Clear areas in order: Night City → Laboratory → Ruins → Sakura City → Space Omega. Skipping areas means missing resources you'll need later.
- Check every corner: Hidden caches and secrets are often in non-obvious locations.
- Match your equipment: Some areas favor different equipment types.
- Read the walkthrough: Our walkthrough provides exact progression milestones for each area.
- Don't rush: Clearing an area fully gives more resources than speedrunning two areas.
More BlazBlue Entropy Effect Guides
- BlazBlue Entropy Effect BlazBlue Entropy Effect Overview
- BlazBlue Entropy Effect Best Builds
- BlazBlue Entropy Effect Tier List
- BlazBlue Entropy Effect Walkthrough
- BlazBlue Entropy Effect Beginner's Guide
- BlazBlue Entropy Effect Tips & Tricks
- BlazBlue Entropy Effect Weapons Guide
- BlazBlue Entropy Effect Combat Guide
- BlazBlue Entropy Effect Boss Guide
- BlazBlue Entropy Effect Crafting Guide
- BlazBlue Entropy Effect Classes & Characters
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