Hi. I was wondering if anybody could give me some tips on how to use samus?

Sure. I love Samus.

#1: If given a chance, always charge up your lazer.
#2: When you're not charging up your lazer or dodging, you should be firing homing/super missles depending on the situation.
#3: Your up smash sucks. Unless you can hit them with the last frame, it won't do any knockback. Use your up tilt instead.
#4: Your main killing attacks are: F-Smash, D-Smash, D-Tilt(one of the most effective), Bair, Dair (Meteor smash.. always satisfying), and at higher %'s, your lazar.
#5: A good combo against any opponent (player or computer), is when at range, spam missles to get them dodging. When you've judged their dodging pattern, mess up their tempo with a fully charged lazar. 99% of the time, they'll get hit for a nasty 35% ranged shot.
#6: Usually you'll be a stationary target, as you're firing missles, charging up your lazar and whatnot. Learn to stilldodge, as your roll dodge is a little slow (but still decent). Your best clearing out move is your F-Smash, which will give you some spacing to fire more missles.
#7: Instead of getting some space (maybe you're at a lower %), use a D-Smash. They will be knocked upward, which can easily be comboed into a Bair for good damage and knockback. Use your high aerial movement to jump over them and give them a Dair.
#8: Don't forget to use homing missles when recovering if you can spare the vertical height! I always like to shoot some missles at edge guarders while making my way back with bomb-jumps, going under the ledge, using my second jump, then using my tether recovery. Works well against edge defenders.
#9: If you're falling down toward a character that can juggle well or is in a good spot to charge up a power U-Smash, use your power bombs to set off their timing. It stalls you in midair for a second, and if you do another one right after, you can hit yourself with the first bomb which will send you a decent distance in the opposite direction of the explosion. (also known as bomb jumping).
#10: Use your F-Tilt. It has the best range out of any melee attack you have, and it has decent damage and knockback. Rely on this to interrupt attacks and approaches.
#11: Your aerial game is pretty good. U-Air combos into all other aerials, and so does F-air. You've got a sex kick, too (N-air). Your finishing aerials are your D-Air(meteor smash) and your B-air(high horizontal knockback).
#12: If it's a one on one and you suck with zero suit samus, and a smash ball appeared, if you get the smash ball, don't use it unless the opponent is on his/her last life. Just hold on to it for as long as you can and Brawl more defensively (as the opponent will try to knock it out of you as fast as possible). If they manage to knock it out of you, use Smashball guarding techniques to rack up their damage and kill them. (Smashball guarding is the same as ledge guarding... just without the ledge. Naturally a player will want to jump straight for the smash ball and ignore everything else... punish this with a missle to the face.)

And that's it because my wrist is tired. Any questions, feel free to PM me.

That is some awesome advice! I never thought of using homing missles. Thanks for the absolutely great advice.

Anytime - If you wanna add my FC, I'll play with you when I can. Just PM me yours. I can't play today, but tommorow I can.

using the grapple in air has surprising knockback as well and can be used well during edge recovery to knock back your opponent. Dtilt is also a great move to use easily when in a pinch, try to practice timing air missiles and air blasts to keep opponents off stage, and a good air combo is to try and use Uair twice then either finish with a kick or screw attack

Spamming the homers and firing a big laser is the best tip ever. And use the running attack shoulder charge. It almost has the same power as a smash.

the dash is powerful and this is great cause i need help with my samus my zss is great but i practicly can't touch the smashball