The Game Boy is 25 years old today, and if you played one first time around it's likely you're at least that old too.
Fortunately, we all had the good fortune to grow up playing Nintendo's finest handheld console -- and as such we know a thing or two about life.
For instance, we know that if you're earning £2 a week pocket money then batteries get expensive - fast.
We also know that Tetris was best in black and white, two buttons is the best amount of buttons, and (thanks to Kirby) you can put on weight just by inhaling.
We've polled our editors for the best advice they learned from playing the Game Boy back in the day.
Check out our fondest memories below, and send us yours in the comments.