1 - Yes, I worked for GUN. Back then I wanted to use my mind for the betterment of society. Then society, or at least GUN, decided that I was too intelligent and tried to kill and/or destroy my effectiveness by murdering a few of my loved ones. One of these days I"ll find out why these kinds of organisations consider that to be a good idea. Idiots.
1.1 - Five or so years.
1.2 - Research and development, naturally. I don't think I'm cut out to be a foot soldier, do you? But put it this way - a great many of the current robots they use in their forces are in fact based on my old designs. Strongly upgraded, because they're not thatstupid, but still miles behind my own designs.
1.3 - See earlier explanation. It's not something I like to revisit often.
2 - That would have been the Egg Walker rampage. I built a couple of them, which didn't need me in the cockpit. Sonic eventually trashed them, but as I said, these plots are mostly to keep my hand in.
3 - I don't really feel an urge to ban any national language. Why on earth would I? I can translate anything, and most, if not all, languages are based on a long history of development and interaction. Textspeak is based on laziness, and leetspeak is based on an urge to stand out where you really don't.
Yes, new questions have been slow, but I will admit that so have I, in the hopes of having a few more to answer in one go. So here we are, really.
1 - Lots of dross, some good.
2 - The Sonic impersonation clotheslines. Seriously, it's a bit tiresome to scout, and see everyone walking around with fake spines. Still, that fad taught me how to develop extra advanced sensor technology. They were going haywire. "Sonic detected, Sonic detected, Sonic de- Sonic detected."
Is it a stupid question... or a rhetorical one?
1 - Not necessarily. A lot of music stands on its own merits. Quite a lot of it also falls on its own demerits. That's something every generation of music has had, I"m sure.
2 - Incredibly difficult to say. You see, I've actually fought Sonic repeatedly. I know, and can calculate and calibrate, his abilities. Characters from games, in most cases, have extremely unreliable amounts of power. Sometimes they can stop meteorites whilst at the next turn they get knocked out by a single punch, to advance a story. It's a question that is exceptionally difficult to answer for that very reason. Still, if I had to pick one, I suppose I'd go with Ratchet. That is one weapons arsenal I do not need, nor want, to counter. I could, but I don't want to have to.
As for your third question, you're lucky you decided to spoiler-tag it. I'm beginning to grow weary of referring people to RULE NUMBER ONE. It's only in the original post.