Dust Bunnies

From Celeste Wiki

Dust Bunnies appear in Celestial Resort, and the 1500m subchapters in 7A and 7B. Dust Bunnies are supposedly the embodiment of Mr. Oshiro's stress and anxiety, but it is unknown if he can see them or not. Dust Bunnies are very hazardous, and will kill Madeline if she touches them.