I watched this who a while back. It was a gun show involving monsters ghosts and all these interesting and fun situation. I liked it when the main character and his friend was in a bad situation with some monsters and then accidentally summoned a pirate ghost.
The girl who couldn't see what was going on and said, "What's happening?"
The reply, "A pirate ghost showed up and started eating the bad guys."
https://www.watchcartoononline.io/monst ... ters-tamer