Noggin

'“Noggin Monsters are basically musical rocks. Deeply in tune with the earth, their simple rhythms echo an island’s pulse. The sensation of reverberation produced by a Noggin motivates all other monsters.”'

Description
The Noggin is a small golem-like monster. Characteristic features include large green eyes, three-fingered humanoid hands and feet, a rocky outer texture, a completely flat head, and a severe underbite.

Interestingly, Noggins' hearing is very poor, owing mainly to the fact that they have no ears. Instead, this Monster is able to "hear" through sensitive receptors in their hands and feet, which pick up the tiniest vibrations. In this way, a Noggin is able to rhythmically follow the heartbeat of the island and reproduce it by tapping its fingers on the hollow top of its flat head.

Song
The Noggin Monster's contribution to an island's song is a percussive tapping, similar to the skin of a bongo being struck with a drumstick. Their hands beat a rhythm onto the top of their heads.

Breeding
The Noggin is the first monster available for purchase market. It can also be bred through breeding a Noggin with another monster in an unstable combination.

Earning Rate
Earning rate is in coins per minute.

Maximum Income
Each monster has a limit to how much income it can hold at a time.

Feeding Monsters
Each monster needs to be fed four times before it reaches the next level. Increasing the monster's level increases the coins earned per minute.

Likes
Every monster has different things that they like. For every unique object that they like that's placed near the monster, the monster's happiness will increase by 25% (in other words, placing two of the same liked item near a monster will still only increase happiness by 25%).
 * Drumpler
 * Travelers' Sign
 * Trumplite
 * Fire Bush