Stasis Dunk!

Use the stasis beam to trap a ghost. Once again, you need the Dark Matter Generator and Slam Dunk Trap. This one isn't really hard, but more of a pain in the butt. After getting the ghosts resistance to Red, freeze it with the Stasis stream and position yourself a few steps back before throwing the trap. You need to toss it directly under the ghost in order for this to work. Thankfully you can just keep re-freezing the ghost to try, and try again.