 CONT: SPOILER: When Harry swoops down to grab Peter off his scooter,  Harry and Peter start to fight each other on the hover board and  Harry cuts Peter with his arm blades on his stomach and you can see  the cut. At the end of the battle Harry gets knocked of the board  with a web and falls to the ground unconscious. Peter then jumps  down to check Harry and the cut on his shirt is still their but the  cut on the skin is not.