He people of the game dev community, I need help

Hey guys, I’m 15 and a new game developer and I’m making a horror game where you play as a gas station owner working the night shift. Regular customers come and go, but every so often this creepy, distorted humanoid thing with long limbs and a messed-up face shows up acting normal—until it suddenly lunges at you. You have to shoot it quick before the jump scare gets you. Kill it and it vanishes, but it keeps coming back after a few more people. But I don’t know how to script so I’m looking for scriptures and artist to team up