For me it has to be Camping Mama: Outdoor Adventures, i remember playing throughout at my sister's birthday cuz i was jealous she had her friends over lol Ib is pretty nolstagic too, i used to watch Favij (Italian YouTuber) play it on my mom's phone
MAJORA'S MASK. That game makes me INSANE. I still vividly remember the day I got it and how I felt first playing it. It rewired my brain permanently. Got it emulated on my Steamdeck now so I can play it over and over forever reply
