Frozen Mech Assault
My major problem with this game is the VS. As you start out the game you get a brief tutorial, and limited time within one of these suits, which seems a little odd, because in the later missions its all you seem to be in. This is where the Mech Assault comes in. You end up walking through the levels in a VS fighting other VS (kinda like mechs). You will also run into larger Akrid that put some variety into the enemies that you are facing.
The story in this game is a little skimpy, not necessarily because there is no story, but due to the short cut scenes and the larger levels, the game seems to skip some dialog, and/or plot lines that would make the story a little more deep and meaningful.