30秒找错别字 is a game that challenges players to find the differences between similar Chinese characters within a time limit of thirty seconds. The gameplay is straightforward yet deceptively tricky, requiring players to spot ten traditional Chinese characters that contain mistakes. The errors are subtle, making the task far from easy.

The game offers two main modes to test players' skills. In the "闯关模式" (Challenge Mode), as players progress through levels, the number of characters to identify increases, culminating in a visually overwhelming experience at higher stages. The "挑战模式" (Challenge Mode) rewards players with extra time for each correct identification but also presents an escalating difficulty curve that poses a formidable challenge even for experienced players. Additionally, the game features visual mini-games that test players' abilities to discern differences in images, text, and colors.