Back in the day, kids used to play with army men figures, small, cheap plastic figures that were most often used to be melted into puddles. The modern-day version would be "pre-melted" in the form of zombies. Yes, this zombies vs. zombie hunters is just like those cheap army men figures, but half are decomposing zombies, and the other half are dressed in decontamination suits.
You don't need to melt these figures, but I wouldn't blame you if you did anyway.