wow I have never heard of that game until now! looks kinda cool. I cant tell you much since I've never played it b4 but the min requirements are as followed
Windows 98/2000/ME/XP
Pentium III 1.2 GHz
384 MB of RAM
3.3 GB of free hard disk space
DirectX 9.0c compatible video card with 64 MB of RAM
DirectX 9.0c compatible sound card
So I think your friends computer will run it fine. during intensive parts of the game where lots of things are moving at once and what not he might experience low frame rates.