Just as the title says, and no your eyes do not deceive you. This is in fact pokemon in minecraft using 100% vanilla minecraft redstone. It is in it's early stages, but here are the features thus far...

-move accuracy calculation
-critical hit calculation
-super-effective calculation
-health items

Future features:

-(hopefully) graphical interface
-dual sprite displays
-health bars

I will be working on this project for the next few weeks. Unfortunately it is not complete enough for me to release a map or schematic, but these will be coming soon!!!

Additional Notes

Regarding the hit calculation, I used a device that I did not create myself, i got the design from a "sharing is caring" video by cubehamster. here is the link: www.youtube.com/watch?v=zeBZSmxxlM8