kira（キラ）
1. A brief flash or sparkle of light
piyo-piyo（ピヨピヨ）
piyo-piyo describes the high-pitched chirping sound made by small birds, especially chicks.
sube-sube（スベスベ）
sube-sube describes a smooth, even surface with no roughness or friction.
gacha（ガチャ）
1. A mechanical clacking or turning sound
pyon（ピョン）
pyon describes a light jumping or hopping motion, especially the quick upward movement made by small animals.
mochi-mochi（モチモチ）
mochi-mochi describes a soft, elastic, and pleasantly chewy texture.
waku-waku（ワクワク）
waku-waku describes a bright, eager feeling of excited anticipation.
pyon-pyon（ピョンピョン）
1. A light, bouncing or hopping movement
puni（プニ）
puni describes the small, soft deformation that occurs when something is gently pressed or poked.
puyo（プヨ）
puyo describes a soft, slightly squishy texture with mild elasticity.