Season 1, start with Nostragon. It will ask you to sneak into Vladir's house. Season 1 needed you to search for 4 kings-tombstones consist of 4 parchments (Oracle's quest - Oraculum).
Then fighting demon to obtain Hallowed Sword or Ceremonial Rod.
Season 2 starts with quest of cleansing Pyramus's heart (holy robe obtained).
Dwight's quest to gain s.b s.w.
Henry's quest getting scroll at Oasis to summon Ughnar.
Ridley's quest only for Level 40 and above be required. Then proceed for finding Trua.
For Level 60 and above, Ray quest. Taking parchment at the tombstone inside Ashmor's demons underground (demons' nest).
Season 3, herofinder, making bomb, getting dowser and use it to enter underground entrance at Aurea (needed 2 players, male and female for opening switches to get through several crates entrance). Finally, obtaining crown leg or king trouser.
Season 4, talk to 4 Npc at Writer's plateau for set plasma quest.
Finding the way to enter Goldforge.
Hogarf's quest, help Ulla to bring back Hogarf's memory (mana recipe).
Storkkbir quest for Level 60 and above. Help Storkkbir to look for Eike.
Season 5 at Banuna. Frost armour/mantle.
Hurtz/Kurtz quest, to get magma mace/dragonbreath spell.
Wudu's quest. 5000+5000 experience gained.
Herbold's quest (need to finish Wudu's quest). 5000 experience gained.
Wilhelm quest, finding Oregra (need to finish Wudu's quest). To obtain holy hat/crusader helmet.
Season 6 Yabutu island. Getting bralala statue, 5000 experience gained.
Caknoris 23 steps, rewarded orange belt.
Opening dam, 10000 experience gained.
Killing Hinshun reward is blue belt.
Rescue Taro be given Ninja ring (level 45).
Black belt (level 50).
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Ultranova! Top Element white Attributes, on Chrono Cross... Sony Playstation Inc. 2nd Clashing with DEMON, check it out http://www.youtube.com/watch?v=ZCW3GZTMwo0