Really good for just a "get the rings" game.
I'll admit, I went in with low hopes because of how simple the objective was, but you sure showed me.
Speech- Excellent. Your way Pepper spoke was an exaxct imitation, and I noticed no grammatical mistakes. Plus, your directions were quick and easy to understand.
Controls- Another excellent. It was simple, and the Arwing glided very smoothly across the game.
Graphics- Pretty good. Like another commenter said before, you did a nice job of making a fake 3-d. My favorite part was going through the line of rings around the beginning. Try making the lasers visible, though.
Music- Meh, it was decent. The song wasn't epic and Pepper made that stupid Command/SNES sound when he talked. I would rather that you had real voice acting, if possible for you. The sound effects were good though. I especially like the sound made from 64 when you put the mouse on an option in the beginning. It's little perks like that that make games enjoyable.
All in all, good. I think you could make a sucessful SF game with action and the such if you listened to my advice.