Go to the Mines under the highest difficulty setting possible as a Human or Newman. Once you find a ring of floating enemies Ryuker back to Pioneer 2. Put Ryuker and Gizonde (Normal to Very Hard) or Rafoie (Ultimate) on your customized attack menu. When you warp back to the Mines, cast Ryuker and proceed to cast the spell mentioned previously until all the enemies explode, except for the leader in the center. Before the leader of the ring warps away, you warp back to Pioneer 2 through the Ryuker you cast when entering. When you get back, heal for 10 Meseta if needed; otherwise get back in. When you return to the Mines, the ring of enemies will return because the leader was never killed or left the room. Set another Ryuker and repeat this for awhile. It may be boring, but if you are trying to catch up to friends or starting to get into the doldrums of Ultimate, then this is a very fast way to level up.