I play Isai on Kailera Client. He's a monster. >_<
And what do you mean boomerang can only be thrown in one direction? I was pretty sure you can still angle it out. Link's bair and nair are still the same.
Throws are also overpowered. It can KO a person at about 100%.
Jigglypuff pretty much had the same movelist, sans Rollout. Her bair has a longer range in SSBM, and her jumps start to fail as you use it in SSB. You can still angle her pound, but she doesn't have the same aerial movement as she did in SSBM. Actually, Kirby did more so than Jiggz did.
With Fox, you can't jump out of his shine, but you can still shine spike with him if you use it as an edgeguard. He has a different u-tilt, f-smash, and fair. He's also heavier in SSB. Lasers in SSB are similar to Falco's in SSBM.
There's no walltechs/rooftechs in the game, so if you end up bouncing around the walls, you're vulnerable to attack.
You can use Captain Falcon's Falcon Punch as a recovery move, since it's actually somewhat quick to execute and it "pushes" him forward. Unlike SSBM, he doesn't regain his ability to jump after a Falcon Kick.