Izzy - StrangeProgram - AAAA (StepMania) 

Hard to say, it's different for each individual, but one thing that usually works to get better timing is trying to play on a higher Judge Difficulty, preferably Judge 7 were a Perfect equals a Marvelous, a great equals a Perfect (on Judge 4) etc... Try that for as long as you can, weeks or months, then switch back to Judge 4. And to really see the results, play atleast 5/10 songs on Judge 4 now, the best you can. Do the thing I mentioned above for like 3 months, then switch back to Judge 4 and play all those songs again and compare :)

press the buttons at the right time

***** The one I used to play with here is a Logitech Ultra X-Flat (Version 1), but I've also got Version 2 and 3 and they work almost as good.

+IzzySM Is it a mechanical keyboard? (late replies pls)

Watch the whole video :P

IzzySM Oh, 4 :P Then I am pretty sure that makes you the most accurate player on StepMania then :P

I use my left index finger and right long finger when I play index/two fingers. I use my left index finger for all arrows except right, and my right long finger for all but the left arrow. So to do on your example, I would have used my left index finger for left (then right for down), left for left (right for up) and then right for up and left for down. :)

That's crazy dude i can't believe you play like that haha. I use my ring finger on right, my long finger on up, and index on down (on my right hand). And then i use my long finger on left. It's not the best i must admit :c. Did you quit for good?

Yeah that seems like one kind of Spread, except you're using 3 fingers from one hand and one from the other. Whatever works is the important thing! I do not play or train like anything now a days, I start the game up like every few months or so, or let my son try it out sometimes. :P

It's a thing called "Neon Lite", I've made a video about it, go check it out. :) Unfortunately the production for it has stopped. :/

Dammit ;w;