Happiness
From Pokemon World Online Wiki
Happiness also referred to by fans as friendship, is a measurement of how much a Pokémon is attached to its Trainer and enjoys being in their care. It affects the evolution of certain Pokémon, the power of Return and Frustration. Certain events increase a Pokémon's friendship (gaining a level, walking a certain amount of steps) or decrease it (fainting).
the following table gives the happiness gain/loss:
| Happiness : | 0 to 99 | 100 to 199 | 200 to 255 |
|---|---|---|---|
| Event | Change | ||
| Walking 256 steps | +1 | +1 | +1 |
| Using Vitamins | +5 | +3 | +2 |
| Level up | +5 | +3 | +2 |
| Using EV-lowering Berries | +10 | +5 | +2 |
| Fainting | -1 | ||
| Trading | Reset to 70 | ||
