Mantalith is the boss of Relic Maze. It is the third overall boss in Freedom Planet. It is likely the guardian of the Kingdom Stone. It is a giant robot that resembles a praying mantis, except for the fact that it has two legs rather then the average six legs of a mantis. While it might appear huge and bulky, it is incredibly agile and durable, to the point of being able to put itself back together in under 6 seconds. It's weak points are it's crystal-like eyes, which are likely it's energy source, and the "wrist-like" front of it's arms, held together by red gems of some sort.
Attacks
It has two "states" (each with it's set of attacks):
Normal Mode: Standard attacks that are somewhat threatening.
Blade Slash: Diagonal slashes. Keep in mind that it's blades individually flash a couple of moments before attacking with them, giving you some time to react.
Dig Slash: Digs blades into the ground, spawning rock projectiles.
Berserk: Jump around, slashing randomly and creating large projectiles.
Secondary Mode: Triggered when both arms are detached, the Mantalith keeps trying to attack you.
Bite: The Mantalith tries to bite the character, but can be damaged when trying to bite.
Tactics
Do what it does.
Jump around and slice/kick/shield-burst it's arms and then head.
It is durable, but it's arms can only take one or two complete cyclones by Lilac or three or four Super shield bursts from Milla. It's face isn't as durable as it's arms.
The head is untouchable and invincible until both blade-arms are detached.
It can take only so many face breaks. After three it's right eye cracks, after one more hit it's other eye cracks, after another it is knocked off the platform which it is standing on, and falls into the bottomless pit, exploding.
Tip: When the Mantalith comes down from the ceiling, it takes a few seconds to roar. Use this opportunity to Dragon Boost, Wild Kick, or Super Shield Burst it's arms before it gets a chance to attack. It will roar everytime you damage it's face.