If you go to the farthest part of the sleepy wood dungeon, it spawns there or some people can spawn it almost anywhere with a Jr. Balrog Summoning Bag.
Gachapon
Jr Balrogs (after the Big Bang) can be found deep into Sleepywood. In order to enter Sleepywoods though, you have to be level 50 at least to get into the portal of Sleepywoods!
Talk to manji in perion and pay him
The balrog attacked Gandalf and the party because it was an evil territorial creature who attacked any who ventured into its area. Gandalf attacked the balrog because he was the only one who could realistically fight the Balrog. As the balrog was massive, they could only run for so long before having to fight.
It depends on your character in Maplestory. I suggest you being level 100+ and having a lot of potions (elixirs and power elixirs work great but are costly).
go to peiron and go to the top of the mountain and go in the portal and there is dances with barlog
Gandalf fought the balrog because he was forced to. The party could not run away fast enough, and no one else stood a chance against the balrog.
None, you have to make your weapons and equips from then on or you can get drops from bosses like balrog or zakum.
Gachapons give you summoning bags and other stuff. Crimson balrog bags are worth 25m ea.
That is the Andras Hat. If you're an Aran, Dawn Warrior or Warrior you can get it by doing the chain of quests that probably start with Dances With Balrog.
Gandalf. Not even a Balrog can kill him.
Yes.