Most of my dreams are pleasant, many calm, but I did have one where I was a pixelated character in a side scrolling game and at one point had to climb a rope to get into a vent in the sky while it was raining the remains of exploded cats, that one def fucked me up when I woke up >_>
Also had one that was somehow from the perspective of both a murderous schoolgirl and her final victim (of like four or five), one where I abused and took advantage of a man at a party (that one fucked me up for a while), one where I saw a professor get crushed by a boulder, one where I ran out of a diner from the grim reaper who was chasing me very slowly but still on my ass somehow, one where I ended up nude at a shopping plaza and most recently, one where I was in a post office and members of the KKK walked in (they didn't do anything but it was jarring). Some others have weird imagery but are still fun (I remember one where I walked through the halls of a school with hooded people who only had black smoke in place of faces and didn't respond to anything, I found the cheat console and made everyone have a dance party, their hoods fell and fireworks exploded from where their heads should've been, was super fun :D)
Also, I rarely get nightmares (the aforementioned ones are most of them) but every single dream where my mother shows up counts