OK if you have Hard Drive partitions that are shadowed use HDToolBox to delete and repartition them to Amiga volumes.
As for PC0: and others, if you want leave them or move them to Storage.
On the Amiga you load the vast majority of games by rebooting with the game disk in the drive, that is why you don't see anything in WB. Some are NonDOS voumes so you cannot even do a directly on the disk, some will show files but will not run unless you boot them. Remember the Amiga is not a Mac.
Hope this helps.