Ideal Bowser Jr. moveset:
-Neutral B: Jr. Flame- He breaths out a ball of fire reminiscent of the classic Super Mario Bros. Fireballs
-Side B: Bowser Shell- hides in shell and advances quickly forward. Think of squirtle's in brawl, but also a good throw back to his sm4sh's side B. This also references the Koopa shell power up in new super mario bros (DS)
-Up B: Koopa Clown Cart Flight- Villager's Up B of sorts. Summons the cart and flies. no hitbox but excellent recovery
-Down B: Paintbrush trap- He paints below him. The goo slows down opponents for a set amount of time if they stand on it. (or some sort of effect)(edited)
Bowser Jr.'s Up Air could be the same as sm4sh' but using his paint brush instead. Loses kill power, but gains reach.
and a Down air could be a ground pound of sort with his paint brush. Bowser's sm4sh Dair, just bounces him up on hit.
For wake up attack i can see him doing one of two moves:
-Hides in shell and spikes turn slightly bigger in a cartoony way
-If he is laying on his back, he retreats in shell and turns. Bowser's Up B but reversed. Think of how the spinies spin upside down when falling from the ceiling
Throws:?????coming soon?????
Taunt: i figure the easiest would be to have him with his arms on waist and laughing. I think bowser (Baby bowser) does this in Partners in time
Final Smash:
Down B Browser Jr. Final Smash is him turning into Shadow Mario and use the paint brush to paint and splash orange fire paint he used in Mario Sunshine on the opponents.