The Rocket is the right claw of Kaiser Crab, fought simultaneously with the Crusher (left claw). The player is always Surrounded, meaning attacks from behind deal 50% bonus damage — always face the arm about to hit hardest.

If either claw dies first — the surviving claw immediately gains +5 Strength and 99 Block (Enrage).

• Kill the Rocket first — The Rocket's Nuke is among the highest single-hit attacks in the game. With only 189 HP (less than the Crusher's 199), it is easier to eliminate and represents the bigger threat per HP. Always prioritize it.
• Prepare maximum Block for Turn 4 Nuke — Once you see the Turn 3 Strength buff, shift your next turn entirely toward stacking Block. Surviving the Nuke turns the fight in your favor.
• Face the Rocket on its dangerous turns — Turns 2 and 4 deal the most damage. Keep facing the Rocket on those turns to avoid the 50% Surrounded bonus damage hitting you from behind.
• AoE is optimal — Cards hitting all enemies chip both claws simultaneously, letting you focus the Rocket while still making progress on the Crusher.

• Focus fire on the Rocket first to eliminate the fight's primary damage source
• After seeing Turn 3 Strength, dedicate Turn 4 entirely to maximum Block
• Use AoE cards to damage both claws while maintaining Rocket focus
• Apply Weak to the Rocket to reduce the Nuke's damage output significantly
• After Enrage triggers, use the 99 Block turn defensively and prepare for the Strength-boosted surviving claw