The 贔屭 bìxì or 霸下 bàxià is a turtle-like mythical creature, one of the Dragon's sons, often seen carrying stone stelae in Asia. Bìxì was built on-site at the Beijing Film Academy 北京电影学院 for the "Prime Matter and Memory" international exhibition, at the kind invitation of Teacher gnimuyAij, with great help from 赵轩 Zhao Xuan and 王赫 Mastem. Bìxì is made entirely out of recycled material. The structure comes from a nearby scrap-metal collection site. The scales and spikes were "sourced" from an undisclosed abandoned sports venue.

During the exhibition, a projection on the side of Bìxì was showing what he sees, using asciicap.py scriptoid.

After the exhibition, Bìxì moved to Josh MC Guru's place, changed head, made new friends, and finally moved outside.