Simmered Pork and Mustard

This pork and mustard number was pretty tasty, but needed heating. Expensive at 178 yen.

Cod-Roe and Butter Onigiri

This cod-roe and butter onigiri was ok, but it would've been better heated. 158 yen.

100% Walleye Cod eggs with, butter and soy sauce together in a Hokkaido-style texture (paraphrased from Family Mart)

Roasted Seaweed Laver Onigiri

A roasted laver onigiri. Sweet and moist. Kind of tasty. Laver is an algae often considered a seaweed.

According to Family Mart: Roasted seaweed laver processed to produce Ariake 仕立Temashita finished with  boiled ingredients while keeping the texture of the seaweed. (baffling)

Whole Egg Yolk Innovation Mortar

This onigiri had sweetish minced chicken with a perfectly poached egg. Sweet, creamy and delicious. How do they do it? The online translater generated this classic from the Family Mart website

"The rice balls are filled with whole egg yolk Innovation mortar. Minced chicken seasoned with sweet and fit to let a good egg and compatibility."

148 yen from Family Mart

Five Classic Flavours

Five open-style onigiri. Mentaiko, Sea-chicken (canned tuna), Prawn and mayo, Ikura (salmon roe) and Seaweed. Classics! 298 yen from Family Mart.

Baked Salmon with Yuzu Pepper

  

An incredibly tasty onigri with a couple of pieces of baked salmon flavoured with a yuzu flavoured miso paste. Amazing but a little steep at 168 yen.