The 'Infinity Challenge' PD recently uploaded pictures of cast members Gil and Jung Hyung Dong's transformation into tanks. On December 31st, Kim Tae Ho PD tweeted, "Gil Tank & Doni Tank." In the photos, you can see the two comedians with stoic facial expressions, wearing military helmets while sitting on wheelchairs that are covered by cardboard boxes, spray-painted to look like tanks. Two other 'Infinity Challenge' members are visible in the background, with one of them wearing a bright yellow costume. Netizens left comments such as, "Infinity Challenge,' the people who create gag stunts, even with wheelchairs,"  "I wonder what the other members in the background dressed up as?", and "I'm looking forward to the episode." Source: Star News via Nate