This is from a specific MUGEN build known as Mugen Match. You can either get the screenpack for it, the pre-made game by Gui Santos via Youtube, or install the lifebars within in any pack. It includes a 004 character editor that automatically updates characters to use the MUGEN 004 tag system that works with the MUGEN Match lifebars. You can play either 3 vs 3 or 4 vs 4.