From WiKirby, your independent source of Kirby knowledge.
Grandy is a large Waddle Dee-like enemy that debuted in Kirby: Triple Deluxe, first encountered in the Fine Fields level. It yields no Copy Ability if swallowed.
Grandy is effectively a large Waddle Dee, and has a similar function to Big Waddle Dees from previous games, just with the addition of wool on its body. Its attack patterns are exactly the same as a Waddle Dee's, though it has much higher HP and takes time to inhale.
Like Waddle Dee, Grandy has the ability to jump between foreground and background in certain situations, and can also be seen riding skis in the icy stages of Triple Deluxe.