The avatar of the self-aware on board the TS-001, wich was developed as a next-generation tactical tank. Since her personality development was based on possible decodings of MS-ALICE's (who became self-aware before her) binary data, she could be considered MS-ALICE's younger sister. She was unshered into Marco's unmanned tank division, but for some reason shows more attachment towards Tarma. ・MS-HEART can resurrect once.

Metal Slug
Metal Slug is a series of run and gun video games originally created by Nazca Corporation before merging with SNK 1996 after the completion of the first game in the series. Spin-off games include a third-person shooter to commemorate the 10th anniversary of the series and a tower defense game for the mobile platform