Wouldn't it make sense if team rocket had a pikachu of their own. Allow me to explain:
This is probably what would happen in an episode if this actually came to be written.
Ash: Pikachu use Thunderbolt on team rocket!
Jessie: Ah, ah, ah! Hold it, we have a surprise of our own! Pikachu use Thunderbolt!
Ash: HUH! When did you get a pikachu?
*FLASHBACK* Team rocket were in some woods after being blasted off and a wild pikachu walks past. Team rocket don't seem to care much but it reminds them of 'the twerps' pikachu and begin to watch it. The pikachu sees that team rocket have some food and comes over to ask for some. After pika-pika-ing for a few short seconds, Meowth explains to Jessie and James that this pikachu has no place to stay and hasn't eaten in days. TR decide to let the pikachu have some food and when they are done they ready the balloon and say goodbye to the pikachu, the pikachu looks rather teary-eyed and so do TR but it jumps into the balloon with them and pika-pikas some more. Meowth tells the gang that pikachu wants to come with them an wants them to be it's trainers.
*FLASHBACK ENDS*
Well yeh, something like that.
This is probably what would happen in an episode if this actually came to be written.
Ash: Pikachu use Thunderbolt on team rocket!
Jessie: Ah, ah, ah! Hold it, we have a surprise of our own! Pikachu use Thunderbolt!
Ash: HUH! When did you get a pikachu?
*FLASHBACK* Team rocket were in some woods after being blasted off and a wild pikachu walks past. Team rocket don't seem to care much but it reminds them of 'the twerps' pikachu and begin to watch it. The pikachu sees that team rocket have some food and comes over to ask for some. After pika-pika-ing for a few short seconds, Meowth explains to Jessie and James that this pikachu has no place to stay and hasn't eaten in days. TR decide to let the pikachu have some food and when they are done they ready the balloon and say goodbye to the pikachu, the pikachu looks rather teary-eyed and so do TR but it jumps into the balloon with them and pika-pikas some more. Meowth tells the gang that pikachu wants to come with them an wants them to be it's trainers.
*FLASHBACK ENDS*
Well yeh, something like that.