In the game you can kill, but it's better to communicate with monsters. The game has three endings, which directly depend on the chosen ways of solving problems. You can hug the monster: he will become kind and will not offend the baby. At one level, the child can offer the monster to lie on the floor with him, look at the ceiling, and then the monster will allow the hero to take the products from the refrigerator.
The peculiarity of the game is that it is not necessary to kill monsters, but it is better to find a peaceful solution. The player controls the actions of this baby.
Video review Undertale review One day a small child fell into the underworld of monsters.