Hi,

I've played the 8th mission multiple times but I'm nearly always missing 32 aliens (once 31 were left).
One time 31 aliens spawned in the super market but that time I was missing 32 enemies...
Since then I've tried to recreate the spawning but I failed...

Do you know a way to get the last 31/32 aliens?

Google already abandoned me and gamefaqs was no help either, so gog is my last hope. ^^

Hello,
I had the exact same problem, with 31 aliens missing. They turned out to be the ones that spawned in the super market, but I have no idea what triggered them. With the exception of the teleporters I believe that all the aliens on the main map are already spawned and will already be visible on the alien radar. Be sure to try to travel to every part of the map and check your radar frequently. The only ones that spawn unusually are the 31 in the super market, they seem to always show up much later (for me, something like 25-30 minutes according to the mission timer) so just wander around the map, exiting and re-entering the market until they appear.

Thanks for the tip.

It's been a while I do seem to recall there's an issue with spawning there. Usually I do a loop of he supermarket, go out, clear another area, then come back. Usually (I think) there's more monsters and that's how to get a perfect clear.