The end of Act One is genius
Enter the Predator, the first time we know there is one. Up until now this was just a grunt movie like Commando, but suddenly there's this POV we've not seen yet as it struts into the final scene. It gazes around and it notices two things: no casualties among Dutch's team, and they've left no survivors. You can sense its excitement at this class prey it has found.
It is impressed.
Finally it scoops up the crushed scorpion and you see its enormous clawed hand. It repeats the sounds it has heard them make: Anytime.
End of Act One.
Classic stuff.