I am a teacher: Super Mario Sweater

I Am a Teacher: Super Mario Sweater, or I Am a Teacher: Super Mario no Sweater is a 1988 Famicom Disk System game released only in Japan. It was designed by Royal industries Co. Ltd., a Japanese appliance and sewing machine company.

The company realized that they could make a lot of money by releasing a sweater-design program, which led to this game. Players could design the sweater they want, and the company would make a real-life version for 2,900 Yen (about $24).