There is a number of things in that...."movie" that can either be considered cringy or laughable and perhaps both.
1. Predator having no concept of gun safety aboard a spaceship and fires not once but twice, causing the ship to crash. Also had he actually hit the Predalien, the acid could have done the same (assuming the ship is not acid proof)
2. The father and son, running towards the crashsite instead of getting help immediatly (granted I can forgive a little curiosity and the father did intend to call the sheriff.)
3. Buddy tapping the ship with his gun, I might be alone here but I just don't see the point in it other than its a cliched way to be curious about something.
4. Buddy not taking his jacket off immediately, he had a good second or so warning once his jacket smoked. Also his reaction to having his arm melted off seemed understated. I haven't witnessed anyone getting severely burnt either by fire or acid but I would imagine it would be painful enough for you to scream at the top of your lungs, especially if your limb was being melted off.
5. The chestburster scene, previous versions have been somewhat plausibly with the creature taking time to punch through the sternum, here it pops out in like two "punches" for a lack of better term. Buddy's body must be very soft, like plasticine or something.
6.Facehugger scene in the sewers, the first one has an interesting way of it happening, what with it coming out of the water but the way it subdues them is unusually quick even if they are chemically sedated.
The second homeless guy even seems to just let it happen, he grabs it and holds it back but instead of getting a tense scene like in Aliens where Ripley was literally fighting with everything she had and was actually choking, the homeless man just seems to let go after seeing the warrior. One could make the arguement he was choked out as I remember the hugger being close enough that the tail was around his neck but he didn't seem to be choking, what with the ability to make yelling noises.
7. The predalien knocking the other alien back, just seems out of place. The species are usually very cooperative to the point Ripley uses them to demonstrate how bad Burke was. "You're don't see them f***ing eachother over for a goddamn perecentage"
8. The sewer fight scene, could have been good but it was just sad for many reasons, nerfed aliens, incompetent predator.
9. Spine ripping scene, unnecessary and silly coming from a non-sapient species. It serves no purpose other than to assume the audience needs more proof that its a predalien.
10. Which brings me to the skinning of Ray, this was just stupid.
11. The Predator not acting the self destruct device when the ship crashed.
12. Wolf not activating his (when it still worked) when it became clear the situation was beyond his control (thanks to him making the situation worse a few times)
13. The super fast search party. I might be overreacting here but I thought police only consider someone missing after 24hours. (scratch that, I just remembered they found Buddy's melted off arm early in the movie)
Because this list getting too long, I might condense a few things into one section.
14. Wolf's behavior, he causes a blackout, he kills a man in a cemetary for no reason (don't bother justifying that with "armed person" he was on a clean up mission not a human hunt and the human was not even aware of him or a threat to him, wolf once just goes off mission for trivial reasons)
Took his time in taking his mask off against what is essential and animal which brings me to...
15. The predalien...just the predalien, nearly if not everything about it. The egg barfing, the waiting patiently for opponent to take equipment off, skinning and taking spines.
16. Most if not all the human characters. I think other members here already used the dialogue as examples.
17. You know what, just most of the movie really.