His name suggests that they are a cupcake and crab hybrid.
Cupcake Crab has a pink swirl of frosting atop their head and body. They also have two brightly orange-colored pincers and a small silly face with their cute little open-mouth smile.
They used to have a serious face from the crab part, but it was replaced with the cute face from the cupcake part.
Cupcake Crab is in Noobia, although positioned at some distance from the spawnpoint. You may have to walk a bit farther to reach them, as they are near the town's outskirts, just before of the dirt path headed for Shindo.
Items and Surroundings
Cupcake Crab only has a lone torch to their left and the dirt path leading to Shindo in front of them which extends to either sides.
When interacted with, all NPCs talk to you with a dialogue before giving you the option to buy or sell.
This is what they say:
I'll buy anything!
... but I won't pay much, hehehe
In Cupcake Crab's case, they have the sell option and another option that starts quests.
In the karaoke machine his song is " cupcake crab at the beach"
Items and Prices
Like I said, they do not have the buy option. You can only sell items, but only for a lower price than if you sell the items to the specialized NPC. e.g sell price for Super Jam is 150 Coins(Octo Kitty) but for Cupcake Crab it's 44 Coins.
They are incredibly useful for earning money or "gold", and getting rid of unwanted items in the game, because they would buy absolutely anything - even if the item cannot be sold elsewhere.
They also have a dialouge other than sell, which is Want anything special?. Once you click it they will say a lot of lines until you get the quest of getting 4 out of 7 shells called Colors of the Sea. Sea Shells are randomized either red, green, blue, gold, purple, black or white. After obtaining all needed shells, you give them to Cupcake Crab and they will give you a magic bean item, and it is used for planting beanstalks, that leads to the clouds dimension.
- Cupcake Crab is the only NPC that doesn't sell but buys anything.
- Cupcake Crab is said to be permanently banned in the seas, and in the bakeries...
- Cupcake Crab is the first and only (as of version 200291) NPC to have a quest function.
- Cupcake Crab is also one of four NPCs not to have a house.