Learning to read two scripts at a young age is a demanding task. This study aims to develop games for building fundamental code-related emergent literacy skills among biscriptal preschoolers. We developed five games and tested them on a sample of 102 Chinese kindergarteners. The participants were aged 4 to 5 years and were learning English as a second language. The children's reading skills were measured with a battery of literacy tests as well as estimated by their teachers using a literacy-related behavior checklist. Correlational analysis revealed that the performances of the children in the tangram games were significantly correlated with teachers' ratings and children's Raven's IQ. Further regression analysis confirmed that the tangram hand-copying game predicted unique variances for visual-orthographic skills and word identification abilities in Chinese and English. This study provides valuable evidence regarding the application of tangram games for assessing code-related emergent literacy skills in the visual domain.