Hmm, this game has potential but there are somethings that I don't like/agree with.
First of; find a good reason why the old Hero can't go after the bad guys again. Can be something simple like an illness or something deep like the loss of his wife killed by the bad guys. That could've been the motivation he needed to defeat them in the first place.
Second; Growlith is the police dog, not Houndoom. So change that if you want it to be better and more realistic. Besides, when Growlith evolves in Arcanine he'll own xD
Third; work very careful with your storyline, and try not to focus 100% on defeating team Ciphre. Introduce some side quests as well. If you want, you could link them to Team Ciphre.....
That's all for now, goodluck.