Lessee, I finished Ultima VI and Times of Lore. I found RPGs to be less Bs-ery.

Tomes of Lore above. Although I found RPGs less Bs-ery, I have not yet finished Ultima V. The main reason, the load times in dungeons. I got to the point where I could happily trawl my way around, but when you went from a hallway to an actual room, the load was ATROCIOUS. Like I was used to long loads, but this was something else. Then, if you accidentally backed out, another long load time. It was infuriating. SO now I’m trying on PC. 
I had Bad dudes Vs Dragon Ninja as well, but it was bugged and wouldn’t load after the third level (it was in some action game pack thing). I always hated that as I played that game a LOT. Well, just the first three levels… so I shouldn’t put that here as I didn’t finish it…
Last Ninja 1 & 2, both took me ages, but the music was fantastic.
I too finished Double Dragon, it was a n absolute turd, easier with two players, but tactics were super easy. Run through enemy, kisck in the back. Run through, kick in the back, repeat until the game ends.
Zak McKraken was one my Dad and I managed to make through. Man that was an adventure and a half.
Hawkeye was another game I spent ridiculous amounts of time on and managed to finish.

Midnight resistance was another I managed to get through as well.

It’s odd, as there were so many I finished, but most of them were hacked, as the amount of BS in them was ridiculous. I especially remember having Robocop. The game looked gorgeous and I could bust through the first 3 levels very successfully, but the the level which has you walking through the drug factory up and down the stairs had an unbeatable time limit on it. I never passed that level. I later read the programmer only every did it legitimately once. I also found out later that the following level was bugged so bad it had to be fixed up by hackers…
Oh and Target Renegade. A super simple beat em up that I was very good at, and could have finished, but the time limit on the streets level always beat me. I think it traumatized me as I despise time limits on games now immensely! Also another game I didn’t finish… Whoops.

I did manage to slog my way though Strider though, something I am quite proud of as that was was bloody awful. Another one with a terrible time limit. and gameplay.

I love C64 games, but will always look for a hacked version. I feel like I can relax more and enjoy it better. Plus I don’t quite have the patience to memorise a crappy game’s layout anymore like I did as a kid. None of these screenshots are mine.