I know there are lots of game better than Combat Arms. But these games dont have something that Combat Arms has; Everytime you make a combo, they push you to kill the next one!
First Kill
Headshot
Double Kill
Multi Kill
Ultra kill
Fantastic
Unbelievable
Unbelievable+
That freakin voice is fucking addictive man! I dont think there is a game that celebrate your kills better than CA.