Special Stages · Stage 1

Nuts 'n' Bolts (Expert)

機々械々 超激ムズ

Nuts 'n' Bolts (Expert) is a Battle Cats stage in Techneurosis. It costs 200 energy and sends 7 enemy spawn lines — led by Metal Cyclone as the boss — against a 400,000 HP enemy base, and clearing it rewards 18,800 XP. Its enemies carry the Metal trait, so cats that target it do the most work here.

Data updated: 2026-08-31

200Energy Cost
18,800XP Reward
400,000Enemy Base HP
4,500Stage Length
6Max Enemies
9.2Difficulty
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Cats that counter Nuts 'n' Bolts (Expert)

Cats whose attacks target Metal, best DPS first — the traits this stage’s enemies actually carry:

Lovestruck Lesser DemonDaybreaker IzanagiMighty Rekon KorpsGude-Cat MachineAgent StaalKing of Doom Phono

Enemy spawns (7)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Metal Cyclone100%16.7s—100%Boss
Super Metal Hippoe100%116.7s—100%—
Metal Doge100%323.3s5s~10s100%—
Metal Doge100%560s6.7s~16.7s100%—
Metal Doge100%10116.7s30s~33.3s100%—
Metal Doge100%10120s30s~33.3s100%—
Ms. Sign100%∞900s900s100%—
All Techneurosis stages