| Replica Youkai In Episode 12, Dr. Yugami Hagase created replicas of Youkai monsters from the children Tengu kidnapped. |
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| Kappa Also came back in Episodes 39 and 53. |
Oboroguruma Also came back in Episodes 39 and 52. |
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| Azuikiarai Also came back in Episodes 34, 39 and 53. |
Nurikabe Also came back in Episodes 34 and 39. |
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Mokumokuren Also came back in Episodes 39 and 53. |