Wikipedia:Articles for deletion/List of Punch-Out!! characters
Definitely notable. Large amount of refs, such as http://www.hardcoregaming101.net/punch-out-introduction-characters/ Hardcore Gaming 101, https://kotaku.com/every-punch-out-opponent-ranked-1750664537 Kotaku, and https://www.vice.com/en_us/article/pg5jyy/what-mike-tysons-punch-out-taught-us-about-fighting Vice that gives opinions about the characters. Not to mention how both Little Mac and Glass Joe have their own articles. 
— User:Zxcvbnm, 09:40, 6 February 2020 (UTC)
Stance: keep
Cited policy: WP:NOTCLEANUP (Wikipedia:Arguments to avoid in deletion discussions)