OpenGameArt.org
Kirill Reznikov - 16 bit Bee
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"Kirill Reznikov - 16 bit Bee" by kreznykov licensed CC-BY 4.0: https://opengameart.org/content/kirill-reznikov-16-bit-bee Author's attribution notice: Kirill Reznikov - 16 bit Bee
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.