4. Mushroom - Super Mario Bros. (1985)
How could we not include the classic Mushroom on a list like this? These were so vital to gameplay that Mario would literally head-butt bricks to get one of them. Mushrooms came in a few variations, but nothing beat the Super Mushroom, which made you grow a few inches in height and made brick-breaking look like light work. In all honesty, though, that red and white ‘shroom head is universally recognizable, especially in the gaming community.