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NeoGAFs Kent Brockman

Footage of cancelled Kirby GameCube project has emerged
The brief video gives us a rare glimpse of what might have been
Announced back in 2004, the ill-fated project, simply referred to as Kirby for Nintendo GameCube, began development way back in 2000. It was planned to launch shortly after Kirby Air Ride but ultimately ended up getting cancelled. Now new footage of Kirby’s lost GameCube adventure has resurfaced, giving us a glimpse of what might have been.
Twitter user ObscureKirby(opens in new tab) posted a brief gameplay video that was uploaded to YouTube by Foulowe59. The video, lasting only 9 seconds, isn’t the best quality, but you can just about make out Kirby battling enemies and using power-ups in what looks like a mix of 2.5D and 3D levels.