New answers tagged animation
Assuming that "when I was a kid" was back around 2004, I'm going to go out on a limb and assume you're talking about "The Snurks". Here's a trailer, courtesy IMDB: The Snurks Trailer
Your description doesn't exactly match, but it seems to roughly fit "Black Hula" ( ).
Bakugan!!! That's what it was! Remembered it the moment I hit "Submit" EDIT: here is picture so people know what I'm talking about
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