The Small Rock if dropped from a tinted rock.Some items do not need to be paid for.Due to this, it can be wise to skip Treasure Rooms for a Planetarium, as shops will typically make up for the loss in items.These improved shops do not appear in Greed Mode.The worse variant has only one random sale terminal, one Shopkeeper, some Poop, and a Fly. This shop can rarely be replaced by a better (or worse) variant: The better variant has 2-6 more shopkeepers, Urns scattered about, two Lucky Pennies, and one more random item/pickup for sale.The other four terminals in the shop can be keys, bombs, cards, pills, trinkets (which will be sold for 5 cents), or more Shop/Treasure Room items. At max level, they have eight items/pickups for sale, of which there will always be at least one Shop item, one Boss Room item, and two Treasure Room items. They do not require a Key and generally have increased stock available. In the standard game mode, Shops are different and much better for Tainted Keeper.