Other chests contain green, blue, or red orbs. She can summon multiple orbs that can be shot away or retrieved. Shields can only be restored by collecting blue shield orbs. He continued to observe these celestial orbs from January 8 to March 2, 1610. The Prophets are the creators of sacred objects called Orbs or "Tears of the Prophets". More powerful enemies release more experience orbs. These skills can be upgraded by collecting specific orbs and killing enemies. Swords, orbs, katars and scythes are fast and low damaging. Five Green orbs heal one health point. Her skills may use Spirit Orbs, Mana, or both. Skills are usually improved by gaining experience orbs, which are released from defeated enemies. It also used role-playing video game elements, such as collectible weapons, armor and hidden orbs. The effects team approached the new spacecraft's design as inter-dimensional portals resembling orbs. A few special orbs, well-hidden, increase all character abilities when found. Checkpoints are spread throughout levels, in the form of silver orbs on pedestals.