For context here are the differences after almost 10 years:

2016 Version (Fine Motion ate this in [post #7049291])
Sauce: A salty sauce using beef extract, with added fruit paste, mango chutney, and vanilla-flavored oil to give it a cake-like flavor.
Mayo: A vanilla flavored version of the Ippei-chan mayo to give off the taste of a shortcake
Add-on Toppings: Strawberry bits, yogurt-flavored cubes, and sprinkles

2025 Version.
Sauce: Uses creaming powder to give it the texture of whipped cream on a shortcake, and is flavored with the aroma of sponge cake.
Special Sauce: Instead of mayo it uses a special starwberry sauce that is sweet but also gives a hint of sourness
Add-on Toppings: Strawberry bits and feuilletine flakes

TLDR: Fine Motion got baited hard again.