I have a few off the top of my head!

• The Rainbow Road shortcut in Mario Kart 64
• the care package glitch in MW2 (equipping your care package marker made you hella fast for some reason)
• the nightstalker infinite bow super glitch in Destiny 2
• theres an exploit in DA: Inquisition where during the big boss battle in the Avvar expansion, you can stand in a specific spot in the arena and basically wail on him (I usually played a mage) without being hurt (tbh this was the easiest way to kill that boss, he was really annoying)

Animal Crossing. You can build a “restaurant” out of panels and well-placed boxes and it doesn’t even look remotely like what you’re building and you’ll get comments like “omg that looks soooo good!” or “I NEED to try this build on my island!!!”