Once we know that we must also know that you need a Phillips screwdriver to take it out of the box and 4 AA batteries not included so that it takes lives. For the volume it will get used to the screaming voice that we can not adjust the volume.
For the rest, it's an experience but very very funny. Between robot pet game that is indefinable but very often playful.
For my generation (30-40 years) it makes me think of a visually gremlins suddenly I'm not necessarily reassured but children do not have this reference and have a good time with.