Quoted from Game Trailers here's what will be in the collection:
• Kirby's Dream Land (Gameboy)
• Kirby's Adventure (NES)
• Kirby's Dream Land 2 (Gameboy)
• Kirby Super Star (SNES)
• Kirby's Dream Land 3 (SNES)
• Kirby 64 (Nintendo 64)
Included in the package will be an on-disc calendar, which looks back at the series' history. There'll also be some sort of special booklet, along with a Kirby soundtrack. And a new set of 10 challenge stages will be included in the game, too.