Alpha Pokemon spawn very commonly in Area Zero, but Paradox Pokemon are a bit rarer! Both spawn as aggressive Pokemon meaning you need to use weapons to defeat them before you can battle and catch them.
Alpha Pokemon have a chance to drop type sandwiches. Sandwiches raise the spawnrate of the corresponding type.
Paradox Pokemon spawn with terrain and weather conditions around them that hinder you. When defeated, they have a chance to drop Herba Mystica. Herba Mystica can be combined with sandwiches to turn it into a shiny sandwich of that type. Talk to Mallow at /warp AreaZero to combine them. Paradox Pokemon also have a chance to drop genie bottles which can be used to summon the forces of nature.
Drifloots spawn anywhere Area Zero as Drifloon, Drifblim, or Drifblimp! Shoot them out of the sky to get loot. They can contain a variety of items, including mega stones and dowsing machines! Bronze Armor (Secret Armor summoning item), and Ancient Strand (Ancient Gene summoning item) can be dropped from Drifloots. All tiers have the same pool of items, but the evolved forms drop more items.
Certain loot can only be found while using a Dowsing Machine or riding on Ursaluna! While you're walking around with a Dowsing Machine or riding on Ursaluna, you'll see a boss bar come up at the top of your screen. The color of the bar and amount of "!"s changes the closer you get to the loot.
When using a Dowsing Machine, there's a chance to find a Mythical Pecha Berry. This item can be used to summon Pecharunt. There is also a chance for Meltan to appear! If you catch 100 of them, you get a Meltan Box which allows you to evolve a Meltan to Melmetal.
When riding on Ursaluna, some of the notable loot items you can find are Herba Mystica, Ogerpon Masks, Zygarde Cubes, and the Old Sea Map which is used to summon Mew. If you have a Zygarde Cube in your inventory, there's a chance for Zygarde Cells to appear. There is an even rarer chance for a Zygarde Core to appear, which is catchable. You can collect cells in the Zygarde Cube and bring it to a Zygarde Machine to turn your Core into different forms of Zygarde.
Shrines can be found around Area Zero for certain legendaries. Using their items at a shrine will start a battle with its respective legendary.
Spiritomb can be changed into its Unbound form by using an Odd Keystone. Odd Keystones can be found from chests and dowsing.
Hisuian Forms of Pokemon spawn in Area Zero!
Terapagos, Rogue Prince, and Manaphite, Manaphy's Mega Stone, can be obtained from fishing in Area Zero.