This is a clever way to get kids in the habit of saving their money. It’s a traditional piggybank with a twist, the more you save the more gold your little character in the RPG game on the front gets to spend. Think of Tamagotchi that eats quarters. You can save around 50,000 yen (about $500US) so it’s a pretty good deal for a kid. Heck, good for an adult too because the interest rates in Japan are .5 %.