Knights Invasion (Hard)

Knights Invasion (Hard) is the second stage in the Castle Dragon VS Castle Dragon stages.

Battleground

 * Infinite Swordsman spawn at 0 seconds0f, with a delay 10~16.67 seconds300~500f.
 * Infinite Cavalry Soldier spawn at 6.67 seconds200f, with a delay 13.33~23.33 seconds400~700f.
 * 1 Battle Baloon spawn at 16.67 seconds500f.
 * 1 Dragon Rider spawn at 60 seconds1,800f.

Reference

 * http://battlecats-db.com/stage/s02078-02.html