I would say his face is more Assault + the weird metal thing on his head. But this isn't about Krystal soooooo
I notice something a little while ago.
Have you guys (girls too?) noticed based on Gimpy's descriptions on who might be top tier. Somewhere along the line of Mario, Sonic, Pit, Meta and Peach. Also those who have been improved, such as Pikachu and Bowser.
If you look at their Dojo pictures, all of those characters look happy (meta is the exception but i'm sure his happy. Even Bowser too.) Now look at the ones that didn't change so much or got nerfed. Fox, Zelda(maybe?), Link, Samus(another maybe), DK. They all look focused and serious.
Now applied this theory (we'll call it the happy face theory for the lulz) look at krystal demeanor. She always looks happy. Going by the happy face theory this could mean that we're getting a high tier krystal.
**Now before the not-so-regulars start bashing me for this (thin as ice) observation, keep in mind I'm just pointing it out because I thought it was interesting. And as with *every* Brawl theory, there are holes in it. Some might find it interesting, other will bash it and point out the noticeable holes in it. Don't waste a post on it, cuz I know the holes in it.