Here are the pre-release images from Pokemon Tretta Lab. Click the thumbnail to view the picture:

May 9th 2013
Pikachu is showcased
 
Serperior VS Emboar - Emboar is super effective
 
Genesect VS Rayquaza
 
Charizard is showcased
 

May 19th 2013
Meowth is showcased
 
Charizard's type strengths &weaknesses
 
Rayquaza attacks Genesect
 
Pikachu's Iron Tail is super effective on Glaceon
 
The Tretta Listings - Series 5
 
July 26th 2013
Charizard VS Genesect
 
Tretta Listings
 
Genesect
 
Charizard's details
 
Leafeon VS Genesect - Leafeon is not very effective
 
Leafeon VS Genesect - Leafeon is not very effective
 
Dragonite VS White Kyurem
 
Heracross VS Croagunk
 
Special Challenge!
 
Tyranitar VS Charizard. Charizard is defeated
 
Special Challenge Cleared
 
Charizard's Challenge stats