I am still learning platformer design but hope the ones i have are fun enough for you

If you follow me i will love 3 of your projects at request

Also, check out @lwi123 he's a good scratcher :

Designing better platformers with funnier storylines

Maybe a Zelda platformer next... I like The Legend of Zelda! I have been playing age of calamity and making smm2 troll levels (good ones tho)