Item pickup: Automatic
Items are picked up automatically by simply walking, driving or flying over them with no action, delay, or anything required from the player, as if the items jumped in the protagonist's pockets on their own.
Alternate name: Touch
The first video game about Item pickup: Automatic was released in 1981.
This is the norm in shmups, so they shouldn't be tagged with this. Used to be the norm in other shooters as well, but this has become less common.
Usually the faintest of touch is enough to pick items up.
This is commonly present even with many other pick up methods, since there are commonly items that players will want to pick up regardless (either because they simply are universally useful or they simply do not take any space in your inventory). This commonly includes health, ammo, money and other such small things.