Kindna, this is from the game though, not the show. In the game Metaknight is evil (or atleast I assumed he was) and tries to take over dream land or something. The first part is metaknight, this part is actually kirby. That's why it's so bright as oppose to the first one. Most of Kirby's enemies are his friends now, such as waddle dee and Dynablade. He's even half way cool with King Dee Dee....half way. I wouldn't be surprised if King Dee Dee was the one who ordered metaknight to destroy Kirby but it never really says in the game why Metaknight is evil. Nor does it say what his evil plot is. There is a dark part in the middle cuz the shadow from metaknight's flying ship casts over dream land and there is evil. Obviously it gets happy again, not because Kirby one, but because Kirby chooses to set out on his adventure...yet again. So basicly the end is a happy good bye to all.
Cuz we all know he's coming back....
There is a part 3, and maybe a part 4 if I feel that it is incomplete. Or if reviewers feel that it is incomplete. I almost feel it is complete now though, except that the fact that I want to add most instruments and harmony to the song, but I don't know where to go with it.