0% infill

I want to print this model http://www.thingiverse.com/thing:633081with 0% infill. Would I just choose mesh 45 degree support or do i have to change the shells, seam, surface layer, offset? just need some advice.

Selecting "Mesh" disables infill, that's all. Everything else is still adjustable and up to you - you don't "have" to change anything.

Bulbosaur has a somewhat flat head, not sure if it'll work without infill, but give it a try!