Battle Arena (mission)/Eternal Struggle

Region: Battle Arena (mission), but this level can only be accessed via the 8-1 Mission: Weight of Darkness. Level: Eternal Struggle Depth: 21 Monsters ??? pending Notable Exploration Entities Heart Generator Treasure Box x??? Mineral Spire x??? Notes All three bouts must be cleared to complete the level. The following missions feature these random mission arena segments: 8-1 Mission: Weight of Darkness: Eternal Struggle