Edit the skull robot tank to have 4 distinct arms, each hand holding a different weapon: a large industrial blade, a blaster, a menacing syringe, and a claw. The exterior metal should be extra shiny silver grey, with inside cables and tech almost black. Add dark shaded smoke coming from the top. The skull face should be even smaller, dropped way down and put forward in front of the tank body. The whole subject should be compact and not tall, with a clean outline and transparent background in retro stickers style.emoji