Happiness is one of two factors which determine a frog's value in coins. 20% of the frog's value comes from its happiness level, the remaining 80% from the frog's maturity.
Happiness can be changed by taking a frog to the pond to eat flies, by letting it sit in a habitat with a combination of other frogs and enough scenery, or by playing the puzzle game with that frog. Happiness value does not affect the outcome of eggs in breeding. Happiness does improve a frog's performance in frog races.
Percent of Happiness in a Habitat[]
The happiness of a frog will begin at 50% when hatched or placed in a habitat from the mailbox, and will then change slowly to match the happiness percentage of its habitat. The time required is around a minute and a half per happiness percentage.
Optimal +Happiness Scenery[]
The following chart shows the minimum number of happiness points from scenery needed to achieve 100% happiness in a habitat with the number of frogs indicated:
| Number of frogs | Scenery Points |
| 8 | 186 |
| 7 | 196 |
| 6 | 206 |
| 5 | 216 |
| 4 | 226 |
| 3 | 236 |
| 2 | 246 |
| 1 | 256 |
Happiness Equations[]
The happiness percentage of a habitat is determined by the number of frogs in the habitat and the happiness points given by scenery items in the habitat. To compute this, follow these steps:
- (# of Frogs - 1) * 10 = frog#Points
- Total amount of +happiness scenery items = sceneryPoints
- frog#Points + sceneryPoints = totalPoints
- totalPoints / 256 = Happiness % of Habitat
or this equation:
