Finally found one, Official PlayStation 2 USB mouse : r/gamecollecting
racketboy.com • View topic - Playstation 2 games that support mouse and keyboard via USB?
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Use a USB Mouse in Silent Scope (Sony Playstation 2, 1999) - Cool Moves - JamPack Summer 2001 - YouTube
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PlayStation Europe on Twitter: "If point-and-click adventures or building sims were your kind of game, chances are you plugged the USB Mouse into your PS2. What games were you playing with this? #