Alright, I am going to start making combo lists of combos that I use, seen others use, and some that everyone might already know, and not know. My first one is for R.O.B. my main. It may be a little unorginized right now, but I will fix it up later.
NOTE: These combos may not 100% work all the time. It depends on the state of the current game and how you use the combos well or not. But most of the time they work for me.
Combos (3-4) D-tilt + F-tilt
(3-4) D-tilt + F-smash
(3-4) U-tilt + Light Jump Tap (LJT) and A-air
(3-4) U-tilt + U-smash
LJT + A-air
If the opponent is running at you, possibly getting ready for a dash hit, once he is pretty much next to you side-step/dodge and then apply D-smash.
To get a slight better acuraccy with the gyro, charge up your gyro, and wait untill your opponent is far enough away, about the whole stages length (this works really good when your opponent is trying to recover) then LJT and shoot the gyro. I have found that it gives a small better chance to hit.
D-throw, jump and use U|A-air
D-throw, jump/LJT and use A-air
{Small Combo} Always a good tactic is when your opponent is too close to you, create more space by using F-tilt, R.O.B.'s arm in that tilt and hit your opponent far enough away to get more space between you to.
When your opponent is in the air, A-air can help alot and do some good damage.
I have found that a better way to smash someone with a F-smash, is to smash it downwards instead of the regular straight forawrd. Do this bye charge your smash (or if your experianced you don't really have to charge it) and tap/hold your control stick down for a forward down smash.
G-down + jump + Back-air
This has helped me a lot. When you are hanging on the eadge of a stage, instead of pressing forward, or A, or the jump button to get back up on the stage, try this:
Tap down on the control stick, press the jump button, then do a F-air. This will attack your opponent better AND give you a better recover to the stage. Always works for me and helps a ton.
More coming soon.