tragibox v2 breakthrough showcase (polos, bonus music and documents) (read desc) 

content warning: disturbing stuff and scary things
the creator said that there is no bonus animation yet
effect 2 kinda reminds me of a polo from warzone demo (though it may just be a common thing found in the studio they used to make the sounds)
fun fact: if you focus more on effect 5, you can hear that it has a sound similar to orin ayo melody 2