Thanks for the great feedback! Regarding the gameplay, I wanted to add blood and more effects, but ran out of time for the jam. I'll definitely work on that for future updates!
As for the story, the family was actually running away from 'Father'. He suffers from schizophrenia, and the final scene (which we couldn't finish in time) shows him surrounded by dead police officers. The objects were meant to unlock scenes explaining this, but we didn't manage to implement it.
Thank you for your advice on the map edges and the info, it really helps!