Have duels against Legendary Duelists Lvl 10. They are the weakest opponents in Duel World and require you to spend less Gate Keys.
What does "Use Skill 1 time" mean?
It is very simple, you just need to activate skill one time. If you do not know what skill is and how to set a skill to your deck, see the link below to GameA skill database. I would recommend you just set Yami Yugi's Power of Dark skill or Seto Kaiba's Peak Performance skill since those skills can be obtained when they reach level 4 and activate automatically at the start of a duel.
I want to know if you were informed about the bug in the Duel quiz primal burst 2, Where the guru keeps summoning itself to the player's side of the field, while when sent to the graveyard it should be summoned to the opponent side of the field
You have to unlock the Joey Wheeler guy at the gate with the gate keys. I think you have to get a certain amount of keys or be at a certain level in the game to unlock Joey Wheeler at Level 30-40 I think. I think you should maybe look at the strategy guides for this game on their websites.
Number of standard duelists increase and higher level gate duelists may happen at a lower level than stated here depending on your GX level