Guard Poppy call it Poppy's Positivity as it's name.

Ivan calls it Joy510 as a experiment name.

Joy510 is both a anomaly and experiment, normally hiding in abandoned restaurants or circuses to blend in.
They always want to make people happy, but not in a good way. One of its main attacks is actually suffocation by hugging, another is making a mask of a smiley face, and using part of its strings to sew it to the person.

#AnomalyExperiments
#SeriousnessOfPoppy
#RandomnessOfPoppy