This game is a must have. It is an awsome first person shooting game that is different from the average first person shooter. It has many RPG elements like obtaining new weapons and abilities and adding to your max HP. This game has some of the best graphics I have ever seen. The controls are great and they fit well with how you play the game. At first you may think it is weird to jump with the B button but you will find out that it is much more convenient. When you are battling against enemies you must dodge the enemies' attacks by jumping. You can lock on to your enemy by holding down the L button. You start out with one arm cannon but you will find three more throughout the game. Each one does different things like melt something or freeze something. Each one does more damage to specific enemies. If you want to do more damage you can use a missile but there is a limit to them. You can find missile, bomb, and health upgrades throughout the game. There are also different visors that give you heat vision and x-ray vision. The music and sound effects for this game fit well with what room you are in or what is happening at that time. There is some replayability to the game, since there is a hard mode. The hard mode is very challenging because you take twice as much damage. This is a fun game that you should not miss out on.