@hungryleow got this for my birthday last year, and we finally had time to play with it (and I finally had a bit of time to procrastinate to write this review)!
Let me say right off the bat - this is more fun to make than eat, but fortunately we have the Bottomless Pit who we tricked into finishing it for us.
Here are the instructions:
The most fun thing to make was the ikura (as seen in Shokugeki no Souma, We had so much fun we forgot to take pictures. it has an air of a chemistry experiment around it? The ikura was also the nicest to eat - the earlier ones were juicy and popped in the mouth but the later ones (as the mixture got more concentrated) were like mini rubber balls.
The ‘rice’ was puffy and fluffy, and I was expecting a mochi-like taste from it, but it tasted like cough syrup. (Actually, most of the things do). The second nicest sweet was the grape-flavoured maguro. Along with the ‘tamago’, it had the same jelly-like texture and medicinal taste. I recommend getting something cylindrical and hard to roll out the ‘seaweed’ (felt like a starburst candy)
We also improvised and made some ‘wasabi’ with green tea powder and a little water. Unfortunately, it did not make the sweets any tastier. The ‘shoyu’ is the packet with brown words, and is like... sugar water?
Taste: 1/10 (the 1 point comes from the ikura.)
(I should just make real sushi next time....)