I am a teacher: Super Mario Sweater

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The cover of the game I Am A Teacher: Super Marios Sweater.

I Am A Teacher: Super Mario Sweater, or I Am a Teacher: Super Mario no Sweater is a 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. This idea led to the release of I Am A Teacher: Super Mario Sweater. Players could design the sweater they want and the company would make it for 2900 yen (about $24).

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