Literally the same exact thing you said, but with actual ghost types wearing low effort ghost costumes.

We’re watching the whole original series as a family and we’re partway through orange islands, ghosts have appeared 3 time so far. Maidens peak has ghastly straight up trolling horny men during an annual festival. Second has all 3 living their best lives in a haunted tower and dicking around with people that try to enter. 2.5 is a continuation of that and I don’t count it as a stand alone, but haunter goes with ash to become the personal jester for a Sabrina. 3 has ghastly and haunter raising a ghost ship to return their dead master’s property, despite being ghosts on a ghost ship, they’re running around with bedsheets on pretending to be ghosts. What do they do when togepi gets lost on the ship? Take it to their comfortable cabin and play baby games with it because ghosts aren’t here to scare you, they’re here to have fun pretending to be ghosts.

Carnival style haunted house, but all of the really dumb pop up ghosts and animatronics are actually my ghost Pokemon lulling you into a false sense of security before scaring the shit out of you. If they think you got what it takes, your cart diverts down an underground rollercoaster to my secret crypt style arena under the spook-house. After the battle, the cart looks like you’re going to take another roller coaster out, but it diverts at the last minute, take a low 30ft roll and ends at a gift shop where ghastly sells you “I survived the spook house and all I got was this shirt” t-shirts and you take a short elevator ride to the exit which is literally right next to the entrance.