Photo taken from “デジモンテイマーズ バトルエボリューション ハイパーEVO!ガイド/Digimon Tamers Battle Evolution Hyper EVO! Guide” pg 82. The Item spawn locations are labeled with a C
The volcano will erupt with pillars of fire at the bottom of the stage. The rock face will light up to signal when the volcano will erupt.
Tips:
This stage is the one where people will move around the most, so utilize the dash on the edges of platforms to fly around quickly.
If hazards are turned on the getting items on the bottom is much harder and you might get suprised by the lava fountain that will probably send you in the lava pool
If hazards are turned on you should not pick nature type digimon, because if they fall into the lava even once, they will lose close to 20% of their health or more.
This stage has a lot of room to move around, you can use this to dodge projectiles.