@MIMA

@S121
Metroid games tend to do that. They just make you feel so immersed. Especially the prime series.
I also tend to get immersed within the atmosphere as well, but not like how you do S121.
For Example I end up getting the feeling of complete and utter despair when I'm in Maridia from Super Metroid, while if I'm in Norfair or any other hot area I tend to feel unsafe, well armed, but like anything will be able to kill me if I'm not careful.
I tend to take my Metroid games seriously.
Metroid definitely is one of the better video game series out there. They also tend to have a lot of replay value with all the item hunting there is in the games. As well as being just plain fun. They make you want to go back and play the games again even after you beat them 100%.
Beat it once? COLLECT ALL THE ITEMS!
100% and beat the game?
Play HARD MODE! (If the Metroid game you are playing has a hard mode.)
Done that? BEAT IT AS FAST AS POSSIBLE!
Done that as well? BEAT IT WITH COLLECTING AS LITTLE ITEMS AS POSSIBLE!