Overly saturated with comedy
They went overboard and tried too hard with the comedy here.
I especially disliked all the dialogue with the weapons as they have thoughts & feelings.
You see alot of comedy sequels that were never as good as the original. If you go back and watch them you'll notice most generally the sequel has more jokes/comedy in it. So movie gets overly saturated by it. Also the fact they force the comedy scenes more to 1 up the previous film. Add those together and its too much.