From WiKirby, your independent source of Kirby knowledge.
The Game Boy Advance, often abbreviated to GBA, is a 32-bit portable handheld console released by Nintendo in 2001. It is fully backwards-compatible with most Game Boy and Game Boy Color games. It features improved screen over the Game Boy Color, being in widescreen, and capable of displaying over 32,000 colors simultaneously. It had two redesigns, in the forms of the Game Boy Advance SP, and the Game Boy Micro. The game cartridges released for the Game Boy Advance are compatible with the GBA slot on the first two models of the Nintendo DS handheld. Later models such as the DSi have removed the slot.
Game Boy Micro
The Game Boy Micro is the successor of the Game Boy Advance SP and an indirect predecessor to the Nintendo DS. It is currently the last handheld that was released under the Game Boy banner. The Game Boy Micro had a very brief period of prominence, but lost its favor to the Nintendo DS, which was released only one year after it.
Two Kirby games were released for the system. One Kirby-themed mini-game was released as an e-Reader card.
Another Kirby-themed e-Reader Card unrelated to Kirby Slide was included in a very rare promotional pack given away at the E3 2002 event. When swiped through the e-Reader in front of Nintendo representatives at the stage, it would tell whether or not it is a winning card. Only 100 second-place and 10 first-place cards were distributed, which when exchanged for a prize, were ripped apart. It is considered the rarest e-Reader Card produced.
E3 2002 e-Reader Pack in its seal
"1st Prize" winning card intact and verified