alien 3 was such an excellent game by acclaim. they did a great job taking the alien movie licence and making it work as a side scrolling shooter. miss acclaim- they were a good developer. nowadays the aliens games are now made by Sega.
i agree that aliens infestation was underrated as a title- should've got more sales. but it was really good, reminded me a lot of metroid fusion. can't wait for aliens: colonial marines for the wii U!