Well, there's the remix of the Title theme that appears on the Pyrosphere stage, and it sounds sounds amazing to me. They've included a track or two from Other M, the Ridley theme from Brawl, Other M, and the Meta Ridley theme, the music from the Vorash fight, and the rest are mostly tunes from Brawl. I don't remember all of them at the moment, but the ones that are included were good choices to me, all-in-all.
SO! I actually played some online battles today, namely For Glory 1v1s. I just barely lost my first match to a Falco, but the rest of the fights that I used Samus in, I won just about all of them. I like how she plays in this one! At first, I was on the fence about her new Nair, but I find that it's actually pretty quick and helpful when you're chasing someone off the stage. Screw Attack is awesome, and the Grapple Beam is great, but I do miss missile cancelling. I've noticed that her second jab hit has some decent knockback at higher percentages, but good luck hitting with it. If you're gonna jab, it's usually best to follow with a tilt, or just roll away, or just avoid using it altogether until the enemy has a high enough percentage.
I started messing with custom moves, and I like how I got a run upgrade that puts and energy field around me and lets me damage people by just running into them. I immediately thought of Samus' Speed Booster. lol
Also, I'm not sure how many have seen this, but I tested her first Bomb custom, the Slip Bomb, and while we all know it trips,
I found out that can spike! Very tricky to hit with the darn thing, but I actually planted it on the edge of the stage, and the CPU I was messing with tried grabbing the ledge, only to be cut off by the explosion which sent it straight down to the blast zone. This also works if both you and your opponent are airborne. Now whether it can easily be recovered out of, I'm not sure, as I have't tested it with a friend yet, but I thought I'd bring it up in case the rest of y'all wanted to give it a try!