Why didn't I just do the same thing I did with King Dedede's old hammer? It's been a LONG time since then, I just forgot about it. Plus, I respect Meta Knight too much, and wouldn't've expected him to pull a sword on me.
Or I simply thought this was funnier. Take your pick.
Kirby doesn't gain invincibility through magical powers, he's just suffering from a massive sugar rush.
@BattleStarX: Yeah, a massive, sugar rush that makes immune to a forms of damage, minus crushing and pits, and can kill every enemy, minus Gordos, by touching them...Kirby is scary man!