Well, there's quite a few new NPCs, and several of them seem like they would be right at home in Arcade. Maybe in a Villager Room, that chooses one of a few random NPCs to spawn into it, or they just become an option to appear in the [?] rooms alongside fishing. Or as a spawn in the Trip: Seems to me that Trip would be right at home in Arcade as another merchant of sorts, given he's a wanderer and seeker of exotic goods. How to set him apart from Shady Merchant? A few ways. Option #1 - The Long Haul. Trip is as eager to get to the end of the dungeon as you are, by discovering assorted goods throughout the level that no one else can find. Unfortunately, he needs someone to finance his travel through the dungeon. Trip first appears on the start of Floor 2, thanking you for clearing the way on Floor 1, but needs money for supplies to follow you further. He'll part ways with the mystery grab bag of loot he found on Floor 1 if you pay him (#) gold, you never know what you'll get until you buy. If you don't pay, he doesn't show up again at all that run. If you do pay, he either shows up again every floor in the starting room or every 1-3 floors at random, continuing so long as you continue to pay him increasingly high sums of money. Rewards are poor at first, but get better and better the further in you go with Trip, possibly getting items that aren't available in Arcade (Halo, Chicken Hat,Health Amulet), monster loot, essences or health potions. Maybe even special tokens that can spawn a healer/shady dealer on the floor? If you take Trip to the end of Arcade, you can cash out all your remaining gold with him for essences. Currently you can only buy from loot Shady Merchant or HP from nurse. Throwing all your cash at Trip as a third option could be fun. Option #2: Investment. If you find Trip in an NPC room, he'll request funding to go deeper into the dungeon with an assurance to pay you back someday. He'll reappear at the start of a random floor before the end of the dungeon, with +10% interest per floor until you find him again. But can you survive without your gold until then? Dr. Jones: Dr. Jones appears in the NPC room with a chest surrounded by ominous skulls at the end of the room. He has a deal for you - loot the contents of that chest and meet up with him on the next floor, he'll make it worth your while. Leave the room without accepting the job or opening the chest and the room'll be empty next time you go in. Unfortunately, the chest is always cursed. As soon as you open it he'll bolt off screen and leave you to deal with the consequences that persist until you reach the next floor. Curse #1: Cave-In. Even if you're not in a cave, stalactites perpetually fall at random around the room, even cleared ones. Ouch. Curse #2: Vengeful Spirits. Every single cleared room will have it's enemies respawned as elites, risen from the grave for revenge. They offer no EXP or drops, just get through the room fast. Curse #3: Any one of Candy's curses for the current floor? Hagglox: Hagglox appears in the NPC Room, and he's there to offer you double or nothing on pretty much anything. You can only pick one option and only one roll, though. Gold? Health, bet 20% of your HP and get an health potion back if you win? EXP (only up to the amount currently in the EXP bar)? However much you currently have you can bet with 50/50 odds to lose it or get twice that back. Maybe you can even double-or-nothing a single Talent, Silver or Gold point, if you have one available. Or Essences, up to, say, 10-20.