Mewgenics · Boss

Mewgenics Radical Rat Boss Guide

Tempo boss that wins by bomb stacking + invincibility timing.

Location: The Alley HP 67 Damage 0

Fast answer

Read this first

Main idea

Scout first bomb lane: identify the common throw lines and deny them with spacing. Assign one unit as the dedicated bomb-clear responder (ranged chip preferred).

Biggest mistakes

Ending a round with multiple lit bombs on the board: the detonation chain deletes backline health bars.
Clumping in a line: bomb cross-lines punish “stack behind tank” formations.

Winning line

You can remove/defuse each bomb fast enough that bombs never stack (keep the board at ≤1 live bomb).
Your formation ensures any single bomb detonation hits at most one unit.

Radical Rat stats

Core fight data for this boss.

Location: The Alley
HP: 67
Damage: 0
Movement: 5
Luck: 5
Size: 1x1

Mechanics snapshot

The main mechanics and triggers that shape this fight.

Main mechanics

Bonus Turns Summon/Spawn AOE Invincible Delayed Explosion

Key triggers

Bomb detonation window Bombs chain-hit lanes when you clump Environment may change bomb behavior

Moves to know

Important attacks, abilities, or fight behaviors to recognize.

Spawn Bomb

Throws a lit Rat Bomb in line with a cat. Delayed explosion. Bombs have 1HP, Fire/Explosive; explosion threatens cross-lines.

Alternative Spawn Bomb

Used when bombs would be instantly defused; throws at a cat within 5 tiles for chip damage; bomb lands adjacent.

Turtle

Becomes invincible (trash can), then detonates all lit bombs; exiting may knockback adjacent units.

Fight plan

The safest way to approach the fight without reading a wall of text.

Decision-first notes

Win conditions

You can remove/defuse each bomb fast enough that bombs never stack (keep the board at ≤1 live bomb). Your formation ensures any single bomb detonation hits at most one unit. You enter Turtle timing with bombs cleared or with a safe lane prepared.

Opener

Scout first bomb lane: identify the common throw lines and deny them with spacing.
Assign one unit as the dedicated bomb-clear responder (ranged chip preferred).

Midfight

Play a strict bomb budget: at most one lit bomb may survive your team’s action block.
Assume tempo disadvantage due to Bonus Turns—hold a defensive/mobility answer for chained turns.

Finisher

Don’t dump all burst if Turtle is imminent; finish after invincibility ends.
Before killing, clear bombs so the phase change doesn’t chain-detonate.

Positioning & loadout

Run killers, positioning rules, and setup reminders.

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Run killers

Ending a round with multiple lit bombs on the board: the detonation chain deletes backline health bars.
Clumping in a line: bomb cross-lines punish “stack behind tank” formations.
Committing burst right before Turtle/Invincible: you lose the damage window and still eat the detonation.

Positioning rules

Never end turn with two cats sharing a bomb cross-line lane.
Keep 2+ tiles spacing unless you are certain no bomb can detonate before you act again.
If a bomb is reachable, prioritize bomb HP over boss HP unless you have guaranteed lethal.
Avoid fighting with your team pinned to walls/objects that reduce dodge lanes.