Can you get halo or halo 2 for a psp?

Halo is liscensced by Microsoft which makes Xbox, and Microsoft Game StudiOS makes the Halo games. PSPs were created by Sony, distributed by Sony, and are rivals of Microsoft. However, if you get Halo 2 for Windows vista, downgrade your PSP to a update capable of handling custom firmware, you can install and run Halo 2 on your PSP.

Also, creators of Halo have created and designed a version for the Nintendo ds and dsi(XL). It was canceled but the beta is still available for download.