[Spoilers] Could someone DM me the answer to the following questions?

DON'T post answers in the comments, okay? Send them to me privately, please.

1. Does anybody die? (in, like, a permadeath way. i.e. Does someone die and NOT get brought back to life by true love's kiss the Chaos Emeralds or something afterwards?) If so, who is it?

2. Does our Avatar get a Super State (or anything that remotely resembles one)?

3. Are the Chaos Emeralds involved in the plot at all?

4. Do you know for sure whether or not we can obtain Infinite's clothes and/or mask for the avatar?

EDIT: Also, if at all possible could you please link me to some evidence if you do provide answers? I just want to make sure I'm not getting misinformation.