Iwa Rock Reef (イワロック岩礁) is the first stage in Ghost Sea.
- B.B.Bunny spawns in 3~20-second intervals throughout the battle.
- After 13.3 seconds400f, up to 5 Mistress Celeboodles spawn, delay between them is 16.7~23.3 seconds500~700f.
- Professor A. appears after 20 seconds.
- The Gardeneel Bros. appear after 26.7 seconds800f.
- After 33.3 seconds, up to 5 Star Pengs spawn, delay between them is 26.7~33.3 seconds800~1000f.
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