Mystic Mask Yulala (謎仮面のウララー, nazo kamen no urarā) is an enemy unit added in 6.7 of The Battle Cats found in the Heavenly Tower event. It resides on the 40th floor of the Heavenly Tower. Its cat counterpart is Masked Yulala.
The king of the Heavenly Tower, Mystic Masked Yulala has very fast movement speed and a colossal two million two hundred fifty thousand HP, but lower attack power than bosses of similar threat levels. He attacks at 200 Range but can hit cats up to 400 range. He also has the power to teleport cats far back. Glass Cat, Metal Cat and Zamboney Cat help a lot in stalling him.
His attack animation is 2.07 seconds. Players can spawn a Manic Mohawk Cat every 2 seconds, which means that with near-perfect timing, Yulala can be indefinitely stalled (at least, until the peons emerge). But notice that if the timing is 0.07 seconds late, Yulala can sprint forward a lot, and kill or teleport every cat away since his movement speed is gargantuan. To solve this problem, a Cat CPU can be used, But this also sacrifices timings for Glass Cat and Zamboney Cat.