The next game they make needs to have online, it must have online. CPU opponents are no fun at all for this sort of game and there is no replay value at all. The next thing they need to do is have all the Bakugan!!! I played this on the PS3, they could have fit way more Bakugan in the game than they did. They should have had all the season 1 Bakugan, and they should have had everyone in every attribute. (Except for the original Legendary Warriors.)
I don't really like or understand the New Vestroia rules but they could include that, it isn't really as important as fixing the game they attempted first. The mini games need to be taken out, the game was awful and they know it, that's why they added the mini games. They knew that the game they made couldn't stand on it's own. You don't see Yu-Gi-Oh games with ridiculous mini games. They also need to take out the huge battle fields, keep it simple, no collectible power-ups or secert passageways.
Another thing they have to do is put in all of the ability cards from the anime. This game had no strategy, I breezed through the whole thing without thinking and relying only on muscle. I only lost once and that was in a 4 way battle, Klaus surprised me with a Gate Card I forget what it was called but it was tricky. They need to add more cards like Mind Ghost, Quartet Battle, Dive Mirage, and Nose Slap.
These suggestions were brought to you today by a me. Someone who bought this game used for PS3 and had every intention to return it. I beat the game on the 3rd day, and got 100% trophies by the 5th and didn't even want to keep it the extra day.