On request, and also because it's no-longer-available-online, here's another Mystery Octagon Theater 3000 MSTing, where Ash and the gang have become dark vengeful warriors of backstory. Or something. Pokemon MASTER, it is named. A delightful romp.
It's only kinda darkish because, while amusing to read, some Pokemon gorily explode an' stuff. Don't bring your substitute elementary class for a visit.