Can you perform Ragnarok when you summon Bambi?
The problem with Deep Jungle is that I couldn't get it to respawn. I moved between areas, I went back to the Gummi ship... it was pretty random. In Atlantica it's very easy to make it respawn. I collected everything in half the time I needed in DJ just to find one.
One question from me, if you don't mind: do you know whether or not Encounter Plus might have played a part in causing the Agaricus to spawn? Like, when using your method in Atlantica, does it matter that you equip the ability or not?
I'm asking this because I once noticed when hunting Gigas Shadows that with Enc Plus equipped, I can't get them to respawn after I kill them all, even after going two or three maps away before returning. I had to board the Gummi Ship and make another landing for it them to respawn. But without Enc Plus, just going two maps and returning did the trick. This had happened only once to me, though, and ever since then I would just leave and revisit the world to cause the miniboss to reappear.