Dong Dong Nao II: Guo Zhong Ying Wen

Dong Dong Nao II: Guo Zhong Ying Wen is an unlicensed educational title developed by L.C. Tchacvosky for Sachen in 1989. Its target audience are Chinese schoolers trying to learn the basics of English. Upon completing some exercises, the learner can play a game of Pyramid.

The game was later adapted for the Korean audience and distributed by Kuk Je Academy in 1991 as English, Pyramid (영어, 피라미드).