I recently found out about these gummies...Puyo Puyo Tetris.
Apparently Puyo Puyo is a game by Sega, and to promote it, they came out with these candies.
By the time I found out about these, most convenience stores didn't have it. I ended up finding it at a nearby 100 yen store...whoo!
A fun way to play with your food...have a nice week!