That site tamabebe12 posted is where I got my instructions... I just debugged a v2 yesterday. A few notes to add if you're debugging a USA v2, be careful opening it...there's a small dab of glue or something that holds it together (not just screws)...you have to pull pretty hard to detatch it.
Hyperspeed is when it speeds up the evolution of your tama by only stopping when it's doing something different, like singing or when it goes to bed. It's cool because you can always catch it pooping so it uses the toilet everytime. Don't worry about it losing all its hearts though, you can always stop hyperspeed by pressing C again.