Chapter 4: Biochem Lab
Boss stages in chapter 4
| Stage | Boss | Element | Boss skill | Notes |
|---|---|---|---|---|
| 4-10 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
| 4-20 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
| 4-30 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
| 4-40 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
| 4-50 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
| 4-60 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
| 4-70 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
| 4-80 | Rotating boss (see codex) | — | — | Boss rotates by chapter; check the pre-battle Zobo panel |
Boss identities for chapter 4 are not yet recorded on either wiki (only chapters 1, 2, 6, 11, 12, 45, 46 and 72 have boss tables). The pre-battle Zobo panel shows the boss and its element before you commit a formation — the Zobo codex lists every boss's skill so you can read the counter.
Getting through chapter 4
- Lanes: 5 columns / up to 15 Tatari.
- Element counters decide most stages: Fire beats Grass, Grass beats Rock, Rock beats Lightning, Lightning beats Water, Water beats Fire. Match each lane to its wave; the UI shows a green "Yes!" when you have.
- Front/back order: Tanks and Guardians (e.g. Rubblet, Pyropup, Zappur) in front, DPS (Frugling, Voltfawn, Frostnip) behind, Cheerling next to the lane that needs buffing.
- Boss stages: no Auto-Battle. Bosses that summon adds (Manager, Shaman, Popstar, Tipsy) punish slow single-target lanes — bring AoE; bosses that teleport (Goonch) need damage in every lane.
- Still stuck on 4-XX? Open the official Discord (invite 7nEcSh73dB) and search the exact stage number; players post formations that cleared it, often with lower-tier Tatari than yours. Copy placement exactly, then battle.
Chapter data re-read:
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