There was a very special event on Easter '11. It was a four-day +50% more experience and coins per battle that also added a new random event: The Easter Bunny. When you met it, as a prize, you could take an Easter Egg from its basket.
The egg had the same function as a mystery box, where you could find:
- Stat pills
- Any of the 3 keys and orbs
- Heroic and genius 1 Day
- All types of crystals
- 15 energy
- Full energy recharge
- Skill points - half or complete recharge (added to current amount)
- Skill and time capsules
Also rare items and with level requirements:
- Crystal ring
- Alien ring
With this event guardian had an "Easter Sale": Buying gems from 475 (685 with 210 bonus) to 950 (1450 with 500 bonus) you get a free Alien Ring.