Hi! Assuming you are talking about G2 pets, here is a list of the possible pets you could have seen. Let me know if you would like more info on them.
(pics from Google)
visitors can't see pics , please
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login #482
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login #880
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login #2022 (very rare)
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login #2490
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login #1446
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login #1750
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login #2006 (rare)
Let me know also if these aren't the right ones.