King Dedede and Escargoon's Character didn't really end that well, as this is supposed to be a happy ending for everyone, so here is how it should have ended.
King Dedede: Home Sweet Home!
Escargoon: crying I never wanna leave this planet again!
Tiff: We did it! Tiff and Tuff hug their parents
Sir Erbum: Cappy Town looks as beautiful as ever!
Lady Like: It was hard work but we rebuilt it together!
Tiff: Everything is back to normal!
Escargoon: Except for the castle, it's still a wreck...
King Dedede: And I aint' even got no way to order no more monsters!
Meta Knight: King, don't be worrying about it anymore, you don't need the Nightmare Enterprises anymore, you've done enough, be at least glad that Cappy Town is saved.
King Dedede: But what about my castle?
Meta Knight: There's always this... Meta Knight showed King Dedede the Waddle Dee constructors
Escargoon: Ah screw Nightmare Enterprises! The castle has to be fixed!
King Dedede and Escargoon both turn happy, King Dedede walks to Kirby.
Escargoon: King? What are you doing?
King Dedede: Something I've always should have done!
All of the monsters that King Dedede used in previous episodes came, with King Dedede holding a microphone, making this statement
King Dedede: As the King of Dreamland! I will now put a permanent conclusion on the war, and will have everything in peace! And uh Kirby, get your butt down here!
Kirby walks to King Dedede
King Dedede: Dreamland has always been a cheerful place with you around my boy, we're friends now, we're all friends now! King Dedede, Escargoon Tiff, Tuff and Kirby shared a group hug
Escargoon: So what now?
King Dedede: This means a celebration! I need you, you and you! He pointed at Blade Knight, Waddle Doo and Nago, they all followed Dedede and they went on stage
King Dedede: This is a song from a perfect man!
The instrumental of Rick Astley - Never Gonna Give You Up! plays as King Dedede is going to sing that song and Blade Knight, Waddle Dee and Nago are the instrument players.
King Dedede: We're no strangers to love, you know the rules, and so do I, A full commitment's what I'm thinking off, You wouldn't get this from any other guy. I just wanna tell you how I'm feelin', gotta make you, understand. Never gonna give you up! Never gonna let you down, never gonna run around and desert you! Never gonna make you cry! Never gonna say goodbye, never gonna tell a lie, and hurt you! We've known each other, for so long. Your heart is aching but, you're too shy to say it! Inside we both know what's been, going on. We know the game and we're, gonna play it! And if you ask me how I'm feeling! Don't tell me that you, blind to see! Never gonna give you up! Never gonna let you down, never gonna run around and desert you! Never gonna make you cry! Never gonna say goodbye, never gonna tell a lie, and hurt you! Never gonna give you up! Never gonna let you down, never gonna run around and desert you! Never gonna make you cry! Never gonna say goodbye, never gonna tell a lie, and hurt you!
After King Dedede finished singing, they all clapped for King Dedede, and King Dedede stepped out, and walks up to Kirby, Tiff, Tuff and Escargoon, and they both turn around and watch the sunset, ending the episode.