Great but frustrating...
I love this game and I'm definetely glad someone finally stepped up to the plate and made a good Aliens game. Thats something very few developers have been able to do over the Alien franchise's 30 year span. A few notable ones would be Aliens on C64, AvP on Atari Jaguar, and Alien 3 for Sega. Considering that dozens of other games were made and thats all I can dredge up is sad, and don't get me started on the PS1/Saturn Alien Trilogy or the AvP movies for that matter.
Since I've been playing this for a long while, I noticed that there are some faults. Very, very frustrating faults. These can be easily remedied though.
ONE: Alien landing randomness. The single-most annoying element of the game is when I start ALIENS LAND ON MY MARINES' HEADS!!!!!!! What is going to stop me from aborting the game and just retarting?
If I'm lucky to make it to the opposite side and have all 9 guys still alive I think I'm in the clear. Right when I'm about to leave the reactor with all of my Marines <BAM!> an alien lands on Hicks and despite 2 or 3 Marines around him its no use and he gets pulled up. This makes your performance in the game lie more with luck than skill. Its one thing if an alien lands right next to you, but on top of you is just bad sport. I'd say a better rule would be if a marine gets far enough away from his buddies then sure, an alien will isolate him and snatch him up in quick succession, thats how they act in the movies. I would say to make it fair but still very challenging, increase the odds of an alien killing, incapacitating or wounding a Marine when grabbing him but don't have them land on top of characters' heads who are surrounded by plenty of other marines. Sure, they can land next to them, that keeps one on his toes. But I can't tell you how livid I can be when for no fault of my own, Ripley gets snagged by an alien when I'm trying to rescue Newt giving me an anti-climactic let-down.
TWO: Impossibility. There is no way you can survive Operations intact if you have the same people from the movie present which is a let down. Belive me, I've tried too. Out of the fifty plus times I played Operations with only Hicks, Vasquez, Hudson, Ripley, Gorman, Burke and Newt I was able to escape with Newt and Ripley just once. ONCE! No other time did I escape to the landing field with anyone else save for getting within two spaces of the exit with Hudson. Unluckily for him though he got snatched. Even with ten or more Marines won't guarantee many of them will survive. On average I leave operations with 3-6 marines left starting from an original 10-13. The biggest casualty producing part is in the air ducts where at least 2 will get pulled away kicking an screaming. Something I would really like to see is the ability to detonate a grenade in dire straits like Vasquez and Gorman did in the film taking a giant horde of bugs with them. That would give the others more time to escape.
THREE: Starting from scratch. Granted this is a flash game but if there was a way to save my progress in the game I'd be a happy man. Lets say you finish The Reactor with all your guys but have a pitiful game in Operations. No problem, just go back to the beginning of Operations with the guys you have that survived the Reactor. Quick fix and more fun instead of having to go back every time and replay the Reactor.
Aside from that, great game. You should expand upon it! Throw in the last scene with Ripley in a power loader fighting the queen. Make the option of playing with Ferro, Spunkmeyer, or Bishop like the original game. A special edition would be ideal for something like that. Speaking of which, remember the remote sentries in the Special Edition? That would be some nice hardware to have in the game.