Umaibo is the super popular kids corn puff snack that offers 15 different flavours excluding seasonal/local special ones. Sometime last year, they came out with a new line of Premium Umaibo. With three flavours, these premium sticks of snacks cost double the price of a standard umaibo: from 10 yen to a WHOOPING 20 YEN!
The three flavours are: spicy mentaiko, wasabi-steak, and rich cheese. I tried them all, and while the texture doesn't different enough to note on, they were in fact very tasty. Each flavour, while artificial, was quite delicious and I would definitely choose them over the standard ones.
With the price being doubled, though, kids who can afford them must be high-rollers, or love them enough to give up 2 umaibo for 1 premium snack.