This boss fires a high arc harmless ball attack akin to the Orange Hypno Bouncer but when the ball lands, a Blue Big Hypno Tree is spawned where the ball lands. The sheer amount of ice needles can make this battle very difficult. It is recommended to tear down this boss as soon as possible using a character with high DPS before too many trees are spawned. The Bait strategy will also be effective if the Big trees spawn together. Ice charms or Black Crystals can negate some of the ice effects from the spawned trees.