Nautilus Tomb (オウム貝の墓場) is the second stage in Ghost Sea.
- Lord Gravey appears with a boss shockwave after 6.7 seconds200f.
- 2 Mr. Moles appear after 16.7 seconds500f.
- After 20 seconds, Zroco starts to spawn every 23.3~30 seconds700~900f.
- After 23.3 seconds700f, Znache starts to spawn every 26.7~33.3 seconds800~1000f.
- After 40 seconds, Kang Roo starts to spawn every 53.3 seconds1600f, up to 4 can be seen.
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