They use their own 1-minute opening, instead of using a 30-seconds version of the 4Kids theme opening.
But the Italian Version uses 4Kids stuff for their adaptation.
I do not own Kirby or this show. All copyrights to 4Kids Entertainment; 4Kids TV (FoxBox); Warpstar, Inc.; Studio Comet; HAL Laboratory and Nintendo.
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The Kirby anime has been shown in a few languages, i.e. English, Japanese, Italian, Bulgarian...