Hitman: Codename 47 had some unforgiving game mechanic where there is no save/load system. You can only restart missions if you mess up. It apparently just saves your previous set-up so at least you don't have to buy your weapons again, but consider this scenario:
You have to infiltrate a restaurant-mansion of 4 distinct levels, each hundreds of feet across, and kill a very, very well-protected Triad leader. That doesn't seem very bad until you realize that the slightest mistake makes you a dead man because there are henchmen everywhere with Uzi's and AK's ready to burst your supple, shaven ass. This is also not so bad until you learn the hard way that even after an hour and a half of straight, perfect execution, you can still glitch or swing at the wrong instance, giving yourself and your time away to the power of restart.
Next you get to the Columbia missions, which are anywhere from 4-8 hours of goddamnit.
I couldn't get the Grub achievement for H-L2: EP2, because the few I missed were in a few cavern intrances at a dead end past the antlion guard. If you make it to the caverns, which is not that hard, you have to escape back the way you came, and guess who's waiting to maul your brains into DNA glop? I tried, tried, and tried, and still couldn't make it past that insect. I probably won't until a mod comes out that introduces some sort of insecticide weapon... Oh, right! You can't kill it. I forgot. Great fun.
I did the Little Rocketman, though I agree it was atrocious and frustrating at times, because there's no place to put the thing in the car without the gnome sliding out at the first slight change of velocity. That train part where you're chased by the bomb-dropping chopper? Yeah...
You have to infiltrate a restaurant-mansion of 4 distinct levels, each hundreds of feet across, and kill a very, very well-protected Triad leader. That doesn't seem very bad until you realize that the slightest mistake makes you a dead man because there are henchmen everywhere with Uzi's and AK's ready to burst your supple, shaven ass. This is also not so bad until you learn the hard way that even after an hour and a half of straight, perfect execution, you can still glitch or swing at the wrong instance, giving yourself and your time away to the power of restart.
Next you get to the Columbia missions, which are anywhere from 4-8 hours of goddamnit.
I couldn't get the Grub achievement for H-L2: EP2, because the few I missed were in a few cavern intrances at a dead end past the antlion guard. If you make it to the caverns, which is not that hard, you have to escape back the way you came, and guess who's waiting to maul your brains into DNA glop? I tried, tried, and tried, and still couldn't make it past that insect. I probably won't until a mod comes out that introduces some sort of insecticide weapon... Oh, right! You can't kill it. I forgot. Great fun.
I did the Little Rocketman, though I agree it was atrocious and frustrating at times, because there's no place to put the thing in the car without the gnome sliding out at the first slight change of velocity. That train part where you're chased by the bomb-dropping chopper? Yeah...