Fun concept! At first I didn't realise that I was that small character, I just assumed I was the thing in the centre shooting for some reason. Maybe have the camera focused on the player, zoom out, start the firing, then give the player control and mention how they move. It says to then finish the task, without making clear what the task is. You could draw the player's eye to the objective somehow, by turning on a light + sound alert, to make it clear to head to it. I also don't like 1 hit death games. Maybe give the player a few hits. Some additional sound like for player movement, the thing in the centre firing, you interacting with things would be nice as well.