Origami Ryujin 3.5 Tutorial [better] File

You think "Valley fold" and "Mountain fold" are the same thing. You have a short temper.

+---+---+---+---+ | / | \ | / | \ | <- Diagonal Pre-creases +---+---+---+---+ | \ | / | \ | / | <- Alternating Grid Pattern +---+---+---+---+ Collapsing the Dragon Scales

You need a precise 96×96 or 128×128 grid folded diagonally.