Pattern is a color legends graph for the characters, crocheters need to know how to crochet C2C or other techniques already to use this graph.

Yarn required heavily depends on yarn weight & hook used, and also tension.
I’d made a gauge swatch of up to 20 × 20 C2Cs before correctly getting the yarn required.

I used a 8-ply bulky cotton & acrylic mix. Each skein is about 95g. I used a little over 31 skeins of red and 1.5 skeins of yellow.