you have to beat at least 13 bosses in The Arena
By beating 13 foes on the Arena
Kirby starts as a playable character; you don't have to unlock him.
He's already unlocked, if you mean Super Smash Bros.
It is a lie
there's only 1 character: Kirby (unlocked by playing the game XD)
you get the final three movies and a gold frame around ur file
You unlock all of the bloopers after you beat the True Arena.
No, I think with Action Replay u can. Waddle doo is playable in HELPER TO HERO.
By beating all 19 foes of the Arena
You choose the helper you want to battle with (I would suggest bonkers or bio spark) and you fight with them. You have to fight each boss until you get to wam bam jewel then after you beat him you win! Good luck beating helper to hero with every single helper (You get a special reward) :D
Marx from Kirby Super Star was named after Kirby, the Super Star.
To unlock King Dedede in Super Smash Flash, you need to complete Classic Mode with Kirby. After defeating the final boss, you will be prompted to unlock King Dedede. Once you do this, he will become available for selection in the character roster.