Can I play this on a PSP Emulator?

Can I use an emulator to run this?

Could we have categories for freeplay?

In Arctic World free-play (though I'm pretty sure it's applicable in story as well) I found that it is possible to clip through the two force fields in the final room. So far the only way it works is to fight either of the bad guys as Robin and hopefully you'll get pushed into the force field and then you can move forward or keep attacking to move all the way through. This isn't very practical as you get stuck a lot, and it barely would save any time, but hopefully with more experimenting it will have a use in the future. I thought it'd be good to share this with the small community here :)

here is me getting stuck

What would be the best order to do the levels in, in a freeplay run?

Can I play the levels in any order? In free play.