What are some good psp games similar to Transformers and Armored Core?

I have played Transformers 1 and Armored Core Formula Fronts and loved them, and would like some good games that are similar to them. Thanks in advance. (Best answer to anyone who gives a list!)|||um.. there is


GTA Vice city


GTA liberty city


Final Fantasy


Logans Shadow


Chili con carnage


Star wars


and i think thats it...


you could find more by going to google and typing in


" transformer psp "


then click on the gamestop link then you could see the similar games on the bottom right