You got something cool going on!
I have some questions though...
1) Why is the game called Samurott Showdown?~I believe the name should be general and not have a single Pokemon name in it.
In example: Pokemon Showdown, Pokemon Battle Fighter, Pokemon Combat Clash!
2) The select playable Pokemon, will they all be humanoid?
~ It would be good to have some non humanoid Pokemon to give diversity.
So yeah, good game!
Keep up the great work and if you need help, I can make line art for the models, help with the story, do backgrounds, etc.