Things that can and will kill you

The fire hydrant that is located on the sidewalk on the right of where you spawn will explode and kill you.

The tunnel that is located to the left of where you spawn will also explode and kill you.

The sad detective at the UFO site in the back will scream and explode, but you can avoid this by touching him and walking away. The abandoned gumball machine under a tree behind a green house will explode and kill you.