KEEP MULTIPLE SAVE FILES chapter 13 has a game ending glitch that if the puzzle piece isn't in the ceiling in the room with the Floor you can barely walk on. if the door key isn't plugged in the ceiling the game CANNOT be completed. Reload and try the room again.
first off this game is great. they redid the weapons so they aren't all useless. i found myself using only the plasma cutter in dead space because it was over powered. in this game the plasma cutter will NOT get you through the game easily. the hoardes of enemies is faster and stronger then in dead space. due to this the game is not nearly as scary as the first one. the story is strong and doesn't feel like your just replaying part 1. Isaac is no longer mute as well which in my opinion is great because it brings more life to Isaac. all in all this sequel was worth at least a play through. those that wish to replay it more can with a excellent new game + mode where you can choose your difficulty, unlike the first one where you could only redo the setting you were on.
i do recommend a play through and purchase for any horror game fan. just remember. keep multiple save files and if you get stuck in a room with goo and no puzzle piece reload and go back in that room and try again because the last section of the game is worth going through for this game. this game would be a perfect sequel if not for the glitches. have fun playing through the game.