Focus on Null Warp monsters in order to move freely. There are Damage Walls but they are fixed on the left and right sides so it is not 100% needed. There are a lot of Skull Effects from the mobs:
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/aIh35LXhNqGGzHSDo-7b1A== | 5.88129e-14 |