2
35-40 dungeons i think
yes some dungeons you can't enter but if you rescue scizor from froslass (crevice cave) you can get to all mystery dungeons
No you cant Zekrom isn't in Pokemon mystery dungeons 2 explorers of darkness
In Pokemon Mystery Dungeon: Explorers of Darkness, the Golden Apple is a rare item you can find in Treasure Hunts. It is also an item you can find in the Golden Chamber which is a rare area to find in dungeons.
Darkrai can be found in several dungeons afer you defeat him at Dark Volcano.
you either finish unfinished missions or talk to someone in the square
if you mean on the dungeons list AEGIS CAVE is after miracle sea..veronica
in dungeons sometimes the kelcleon shop in town same thing but cheaper dungeon-9000$-10000$ town-8000$
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possibly anyone you see in mystery dungeon are possible to get
Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness will be released in Europe on the 4th of July, 2008.
No Arseus is only on mystery dungeon explorers of the sky which is only in japan at the moment. http://www.serebii.net/dungeonsky/