
Chapter 1
The grid and the grain
Chapter 2
Hardware color palettes and edible dyes
Chapter 3
Layering depth from parallax scrolling to bento levels
Chapter 4
Sprite collision and structural food engineering
Ch 4 · Sprite collision and structural food engineering

choko Tightly packed octopus sausages in a bento illustrate overlapping sprite collision boxes.
Glossary
katakuriko (noun)
A native Japanese potato starch that transforms into a thick, sticky paste when mixed with water. In decorative bento building, this edible glue acts as the ultimate structural mortar, keeping food 'sprites' securely anchored so they don't break apart during a lunchbox collision.
A native Japanese potato starch that transforms into a thick, sticky paste when mixed with water. In decorative bento building, this edible glue acts as the ultimate structural mortar, keeping food 'sprites' securely anchored so they don't break apart during a lunchbox collision.
choko Bento Structural Food Engineering
We lock the layers with a pasta pin, They soften up before the meals begin.

choko Memory limits cause game lag, while physical instability causes bento structures to collapse.
Fun Fact
Spaghetti skewers: Using raw spaghetti to pin food is a professional kyaraben secret; it absorbs moisture and becomes completely soft and edible within hours.

choko Simulating physics requires rules for how characters interact with platforms and gravity.
Glossary
hitbox (noun)
An invisible boundary used in video games to detect collisions between different on-screen elements. Kyaraben designers physically replicate this concept by using dry spaghetti to secure edible characters in place.
An invisible boundary used in video games to detect collisions between different on-screen elements. Kyaraben designers physically replicate this concept by using dry spaghetti to secure edible characters in place.
Quiz
What ingenious edible item do bento artists use to anchor floating platforms without using dangerous wood toothpicks?

BETA
choko Stack bento ingredients dish by dish to learn how retro game sprites are structured.
Quiz
Why do bento artists avoid letting wet sauces touch dry rice until the meal is eaten?
Quiz
How do raw pasta skewers behave inside a packed bento box by the time it is opened for lunch?
Quiz
What physical constraint in bento design acts exactly like the edge of a video game screen?
Quiz
What is the primary function of edible binders like honey or starch in kyaraben construction?
Quiz
What Japanese potato starch is commonly used as an edible binder to glue food elements together?
