Collaboration Stages · Stage 1

A Tower Piercing the Sky (Hard)

天を貫く大要塞 上級

A Tower Piercing the Sky (Hard) is a Battle Cats stage in Devilish Illusion. It costs 100 energy and sends 10 enemy spawn lines — led by Wondermaria (Enemy) as the boss — against a 100,000 HP enemy base, and clearing it rewards 18,800 XP. Its enemies carry the Black and Floating traits, so cats that target them do the most work here.

Data updated: 2026-08-31

100Energy Cost
18,800XP Reward
100,000Enemy Base HP
3,600Stage Length
8Max Enemies
4.1Difficulty