a light switch
Terrarian
Skeletron Prime is really easy. Asphalt bridge in the sky, spam the clockwork assault rifle and he should be defeated, as long as you kill the laser and bomb cannon first, then the vice and saw don't really do anything since you're running on asphalt, keep firing at the head.
Also, wall of flesh is easy with precise timing using any cloud in a bottle-type item, meteor armor and space gun, or making a long bridge and using a bee gun to kill the hungry fast and damage the wall, then use a strong ranged weapon.
Also, wall of flesh is easy with precise timing using any cloud in a bottle-type item, meteor armor and space gun, or making a long bridge and using a bee gun to kill the hungry fast and damage the wall, then use a strong ranged weapon.