"Emerging from its muddy birthplace, the Fwog sings passionately in the hope of attracting a companion. Its hypnotic call fills the air, stirring the most primal feelings of excitement in all monsters."
Each monster has a limit to how much income it can hold at a time. Increasing the monster's level increases the limit.
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, as well as the maximum coins earned. The food per level is the same for all double element monsters and can be found in this article.
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%).
See the Likes page to view a complete list of all monsters' likes.
Some items to take into consideration when designing your island by strategy are number of beds for the monster, rate of income per bed, max income per bed, and time for max income to be reached. The income below is for level 15:
Number of Beds
Rate of Income High
Rate of Income Low
Rate of Income per Bed High
Rate of Income per Bed Low
Max Income per Bed
Time to Max Income @ High
Time to Max Income @ Low
A play on the word frog, as if spoken by Elmer Fudd.
Rares are special versions of monsters that are only available to buy and breed on weekends. Each weekend a different rare is available to buy or breed. The breeding combination is the same as a regular monster, but the breeding time is longer, the "likes" are different, and the earning rates are higher. They are not yet available in the Windows version of the game.
Find out more about the rare version of the Fwog on the Rare Fwog page.
Even though the Fwog's bio in the game says it creates excitement in other monsters, the Fwog doesn't seem to act happy. Of course, it's hard to tell if a frog is happy, except perhaps for another frog.
Fwogs elaments may also reference that frogs are amphibians and live on earth and in the water.