Someone explain this

[Dish0ut]

how does he shoot

 

[BlueX]

I guess the guitar shoots music notes and can also be used to hit people.

 

[Frizz]

Why is this a poll, anyway? There's only one answer to this. Unless it's a discussion, of course.
...Which I don't exactly know the right answer to, but chances are, from the way the blaster is held, the projectiles come out from the itty-bitty top of the guitar.

I guess the guitar shoots music notes and can also be used to hit people.

I don't think costumes changes the skin of the projectiles. But it might. You never know what this DLC costume can do until it comes out. That would be cool though.