That's an idea we could look into ! Thanks for the feedback !

I don't think you are dumb, we do have hitboxes slightly bigger than our sprites ("small" overlook on our end, which could explain why you "ended" this fast)
And you're surely right, maybe we weren't clear enough that you should run people over with the flagging tape while dodging them? 

Could you give us pointer on how you would have liked to be told this? we tried with the tutorial panels :'(

It's not explicitly said, but you lose when an enemy touch one of your character. They spawn at the border of the map so if you're too close they can spawn on you and kill you instantly (their spawnpoints are represented by open doors).