This boss is essentially a combination of the Green Big Diamond Tree and the Yellow Big Coconut Snake. It shoots homing spikes towards characters constantly and with incredibly little delay. This enemy can prove highly damaging due to its incredible rate of fire, and absolutely no cover to hide behind to avoid the spikes. The best way to deal with it is to use a high-LP character (preferably with a Black Crystal 6 and a Purple Crystal 6 equipped) to bait the boss's shots, utilizing the Onigiri dropped by the 50 White Triangle Germs with it to heal off damage. Slowing it down with an Ice type weapon is also recommended in order to slow down its rapid-fire attacks, although the characters will still be in a constant barrage of spikes. Poison type weapons and especially the Poison Spirit can help take a large chunk of LP off of this boss.
This boss has the lowest minimum AGI out of any enemy in the game, with a minimum AGI of 4.