Master Hand and Crazy Hand appear as mini bosses in this game.
The seventh game of the Kirby canon.
The fourth Kirby game to be released in June after Kirby Super Star (1996), Kirby 64: The Crystal Shards (2000), and Kirby Air Ride (2003).
The Missile ability deals different amounts of damage in the Japanese and western versions of the game. It deals 6 (direct hit) and 2 (explosion) in the Japanese version, and 4 (direct hit) and 1 (explosion) in the western version.
In the Japanese version of the game,, a glitch is present when the player uses the mobile phone before dying from falling into a pit or by touching dangerous surfaces which will cause the game will freeze up. This glitch can also be caused by getting the ability roulette (when one of the other Kirbys uses Magic and the outcome is that everyone gets an ability roulette). This glitch was fixed in the western version.