As a kid it took me way to long to figure out the broom riddle.
Metal gear solid - I didn’t find the thermal goggles till my second playthrough. So it took me days of random flailing and pausing the game for school/sleep to beat psycho mantis cause he was invisible.
https://www.youtube.com/watch?v=5U9rMkgoGL8 He looked into the pinwheel with his 3rd eye.