I know this is stupid but do the Pokemon evolve on this game?

Yes..After you have beaten Rayquqza and save the Pokemon world..Go to the Whiscash pond..there's a cave there but you must go there alone.The Luminous cave is what it's called.Go there to evolve.

To gain the ability to evolve your Pokemon you must beat Rayquazza. After you have beaten Rayquazza and the credits have rolled, you will gain access to Luminous Cave which is found at Whiscash Pond just north of the Pokemon Square. There will be a commotion in Pokemon Square prompting you to go there and learn about evolution. Then the next time you try to leave and go on any mission, your partner will stop you and tell you how to change leaders and travel using just one pokemon. Enter Luminous Cave with just the Pokemon that you wish to evolve. The Pokemon that you are evolving must meet the required level for evolution and in some cases might need an item such as a moon stone or sun stone

Hope I Helped

Yes, Pokemon evole only in Red Rescue Team. First you have to stop the falling star from colliding with the world.By defeating Rayquaza and asking him to destroy it with his Hyper Beam. After that happens you will watch an event in which your starter Pokemon will have to return to the human world, but your Pokemon's will to stay will overpower the spirits and you be on the top of the Great Canyon. Everyone will be happy you're back. The next day, you're friend Pokemon will tell you that something happened to Snubull. He is now a Granbull, he will talk about going into a strange cave. It will be were Wishcach was before you went to the Sky Tower. It's called the Luminous Cave, but only 1 Pokemon may enter. So try to go to an adventure cave, your friend Pokemon will tell you something about choosing a team leader. Then press B, go to the Team icon and make your friend go on Standby. (Certain Pokemon need to reach a certain level, others like Onyx need an item.)