You will watch Ben 10 Season 1 Episode 12 Side Effects online for free episodes with high quality. Online episode guide, Ben 10 Season 1 Episode 12 Side Effects Side Effects A man named Clancy, who has the power to control insects wants to take revenge on Councilwoman Liang because she wants to tear down the building where he and his insects live. Meanwhile Ben has to deal with the strange side effects a cold has on his alien forms after celebrating stopping an attempted robbery by having an ice cream party. Each alien had a different effect: Wildmutt had his sensors clogged by the cold, making him unable to see or smell. Fourarms cold didn’t effect his powers, though, his armpits became putrid pockets, making them smell horrible. Heatblast’s powers changed completely, as the cold gave him freeze powers, which actually defeated Clancy and stopped the meltdown.