My earliest prototype used ascii characters for snakes and fruit. This had a problem - since terminal characters are twice as tall as they are wide, vertical movement felt much faster than horizontal movement:
李대통령 “큰 거 온다…2월 28일 커밍순”, 뭐길래?。关于这个话题，safew官方下载提供了深入分析
。业内人士推荐Line官方版本下载作为进阶阅读
甚至还有一些讲究「降本增效」的防窥膜，只蚀刻纵向光栅，导致只能左右防窥、上下或者斜视看过去依然是一览无余的：
Additional reporting by Jonathan Fagg, Patrick Hughes and James Pearson，更多细节参见搜狗输入法2026