Towers · Stage 21Floor 2121階Data updated: 2026-07-24200Energy Cost17,860XP Reward920,000Enemy Base HP4,000Stage Length10Max Enemies10.1Difficulty Build a lineup for this stage Test your team vs this stageStage rewards20% — Catseye [Special] ×3 · first clear · Treasure Radar20% — Catseye [Rare] ×3 · first clear20% — Catseye [Super Rare] ×3 · first clear20% — Catseye [Uber Rare] ×3 · first clear20% — Catseye [Legend] ×3 · first clearEnemy spawns (11)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesCerberus Kids600%∞0s2s~6s100%—B.B.Bunny4000%103.3s1.3s~3.3s100%—Shy Boy1800%213.3s3.3s~6.7s100%—St. Pigge the 2nd2000%110s—100%—Capy150%30s13.3s99%—B.B.Bunny4000%60s1.3s~2s99%—Christmas D.600%30s93.3s~94s99%—B.B.Bunny4000%∞0s66.7s~67.3s99%—Red Cyclone200%10s—99%BossHackey200%10.1s—99%—Ms. Sign100%∞900s900s100%—All Infernal Tower stages