 Criticism of the game was aimed at its level of difficulty , which is higher than that of its predecessor ; 1UP.com mentioned that this was most noticeable near the end of the game , where " there are levels that consist of nothing but wave after wave of difficult enemies thrown at you to deplete your ammo , and then more waves of enemies after that . " GameSpy , however , praised this aspect of the game , saying that it made Going Commando more interesting than the original . Some reviewers also felt that the game 's space combat was poorly done in comparison to the rest of the game , and that the " Giant Clank " levels were " brainless and boring " . 
