GO! GO! TOKYO MER: Kinkyuujitai to Tatakau Nakama-tachi

GO!GO!TOKYO MER 緊急事態と戦う仲間達

The story

The live-action Tokyo MER: Hashiru Kinkyuukyuumeishitsu medical drama series got a short anime to commemorate the series' movie announcement. It portrays the characters as animals. (Source: Anime News Network)