i thought this was gonna be easier, but i think i got a decent enough idea. imagine this as a sonic boom episode
The Summer Cold:
Tails: Sonic! Sonic wake up!
Sonic: What is it, tails?
Tails: it's snowing!!!
Sonic: Snowing? How is it snowing we're in the middle of summer?!
[They leave the shack and find the whole island covered in snow]
Sonic: woaah! how did this happen?
[Amy goes to talk to them]
Tails: any idea how this happened?
Amy: no, but we need to find out who's behind it
Sonic: Why? the snow's not hurting anyone
Amy: but think of all the people without homes that are freezing to death as we speak
Sonic: ugh fine we'll go see who's behind this
Tails: i bet eggman's behind it, you'll find his base if you--
Sonic: yeah yeah i'll go get 'em
[Sonic Runs to eggman's base and knocks on his door]
Eggman: Oh Sonic The Hedgehog, how nice of you to visit
Sonic: drop the act egghead, why did you cover the island with snow?
Eggman: fine, follow me
[They enter the base]
Eggman (Cont'd): As a child, every winter the children would throw snowballs at me. I had to hide in the basement all winter, but for 30 years, I've been planning my revenge.
Sonic: throwing snowballs is a usual winter activity, they just wanted to play with you egghead
Eggman: you mean......all those years of humiliation and icy torture..............they were trying to play with me?
Sonic: yes....
Eggman: [looks at window] My god....all the years i've wasted planning
Sonic: how about you join me and the gang as we hang in the snow?
Eggman: that sounds like fun, sure
THE END