Kirby should be able to swallow items as well as opponents and have the abilities from the Kirby games (Bomb Kirby, Fire Kirby, Spiky Kirby etc.).

Some of Kirby’s alternate looks should be:
-Waddle-Dee
-Meta Knight colour

Meta Knight should have stronger smash moves

King Dedede and Meta Knight should be a LOT more different from Kirby and Bowser

Once a certain amount of the game has been completed, Kirby should be able to start a Vs match with a hat. The hat Kirby wears should be choosable before the match starts.

More items from The Legend of Zelda. E.g. Biggoron Sword, Hover Boots, Bomb Chu etc.

Less clones.

Either leave out characters who haven’t been in a game for more than three years (when was the last Ice Climbers game?) or make new games for those characters.

For goodness sake, do NOT add the Baby characters (Baby Mario, Baby Luigi, etc.)

Improve Peach’s Final Smash.

Put in some proper online features, like national Brawling tournaments and customizable matches against anyone. Remove the time limit for selecting character / changing options.

More outfits for characters. Can’t be that hard to programme so I don’t see why not.

Add “Majora’s Mask” Link. His V+B move should transform him between Deku Link, Zora Link, Goron Link and Human Link (transformations rotate, like Pokemon Trainer’s Pokemon do). His Final Smash should be Fierce Deity Link. MM Link’s move set should be based on Young Link from Melee.

Midna should be added to the roster. Her Final Smash should be Fused Shadows Midna. Her V+B move should transform her between Imp Midna and Human Midna. Imp Midna should be able to float (like Peach). Human Midna should be able to use dark magic attacks, like most Twilis can. Imp Midna should be able to summon large blocks (which fall down on the stage, possibly hitting an opponent) via portal as she does in Twilight Princess.

Ganondorf shouldn’t be a clone of Captain Falcon. He should be able to use the sword from Twilight Princess, instead of just taunting with it.

One of Ganondorf’s outfits should be Phantom Gannon

Link should have the following outfits:
- Magic Armour (TP)
- Zora Tunic (TP)
- Twili Link*
- No-Hat Link*
- Village Clothes (TP)
*made them up, but they would look cool :P

All characters should have a cell-shaded outfit. If this is too big a task, apply this to just Zelda characters.

Link(cell-shaded)’s face should be as expressive as it was in Wind Waker.

Sonic should have different colours, not just different shades of blue.

One of Sonics’ outfits should be Shadow.

Either Silver or Knuckles should join the Brawl (or whatever it’s going to be next). I chose these characters because they are the two Sonic characters who vary the most from Sonic (while maintaining an interesting move set, which is the reason why I did not suggest Tails and Eggman). Knuckles would have strong punch combos and be able to climb, glide, and dig himself underneath the level for a short amount of time; after this he would punch upwards while coming out of the hole. Silver would have mostly psychic/telekinetic moves while maintaining some Sonic-ish moves. Silver would also use Peach’s “float” ability.

Some of Mario’s costumes should be:
- Sunshine Mario (short sleeved)
- Galaxy Mario (near the end of the Mario Galaxy you can wear red and black overalls)
- Retro Mario (pixelated)
- Soccer Mario (from Super Mario Charged Soccer)
- Dr Mario (looks like Dr Mario from Melee)

More levels like Mushroomy Kingdom should be added (Zelda and Kirby versions would be good).

Mario’s FLUDD move should be removed.

Before starting a match, a player using Pokemon Trainer can choose which three Pokemon he wants to use (the player can choose from 9-12 Pokemon).

Pokemon Trainer’s Pokemon should be stronger than they were in Brawl

ROB should be removed.

Samus should have a Dark Samus outfit.

DK should be able to throw barrels as one of his B-button moves.

Diddy Kong should be removed.

Waluigi should be added. Some A-Button moves cause opponent to trip up when hit. Uses the purple vines/ivy (thing) from Super Mario Charged “Soccer”. >+A move uses Tennis racket. Waluigi’s moves are very fast. Jumps high, but not doesn’t cover much horizontal distance. Final Smash = uses whip to get opponent an extra 150% damage, although it doesn’t launch the enemy at all.

Falco should either be removed or changed so that he is different from Fox and Wolf. Wouldn’t mind Wolf staying the same.

More Sonic levels. One of them could be Mushroomy Kingdom style, except it speeds along the level so that it suits Sonic, and the only way to stay on the screen is to keep running. Who ever falls behind goes of the screen.