□□>□r□□ □eart-□□□nding missions to o□□rageous game□, the challenges in "R□nn□ng□Man 201□□331" kept bot□ the cast members and viewer□ on the ed□□ of their□seats. Wh□t□er it was□a□race □gainst time □o c□m□le□e a task o□ a g□me of wi□□ to o□□smart the□r oppo□□n□s, □ach chall□nge brought□out the co□pe□itive spi□it □nd□comed□c tim□ng of th□ participants.