Once Again, you have done an amazing job my friend, completed this game, getting 100%, and no Damage, very wonderful job, now with this game completed, a new Poll is going to start of what Game will be played next, anyway keep doing a wonderful job, I look forward to more.
POKEMON TYPE WEAKNESS/SUPER-EFFECTIVENESS ALERT (FIGHTING >>> DARK): The scenes where Kirby beats and destroys the enemies and bosses in above video explains why in pokemon franchises Dark type pokemon is weak to Fighting type pokemons/attacks (reason: Good guys/main heroes use battle moves against Evil creatures to beat them).
Spoilers for this video . . . . The fact that you can almost defeat 0² in a single cycle makes this boss an absolute cakewalk compared to other bosses.