#2
I like your taste in video game music.

It sounds a bit like the lead stuff Joe Satriani would do, but I really dont listen to Joe so I could be quite wrong there.
#3
sounds like fusion.
the brecker brothers (this actually sounds a LOT like a less good, but not bad, brecker brothers) are pretty much where its at with that style, the chick corea electric band, and herbie hancock to a lesser extent have that sort of sound. trombone shorty has songs in that funk/rock/fusion type vein as well, though he also has a lot of brass band influence and his music is considerably less harmonically complex (though just as good if not better) then most fusion.
also, the mars volta. not that there fusion, but there cool and have some moments that sound like that.
all the best.
(insert self-aggrandizing quote here)