[quote name='FaintDeftone']Majora's Mask. One of the very few Zelda games I haven't completed. Every time I start it, the time limit turns me off and I move to something else. I will finish it one of these days, damnit.[/QUOTE]
I'll second this, which is a shame since I had fun for the parts I played, though every time I had to start the 3-day cycle over again, I felt like I was taking a step backwards in my progression (more psychological than real though, as you did keep all the key items you collected).
Plus it was bad enough in OoT and LttP, where you had two realms to keep track of in terms of sidequests, but with three days, each with day and night cycles, means I had to keep track of 6 different times for quests, let alone the pre / post boss fights zone effects, which also affects certain quests. Filling out your Bomber's notebook was almost down to the in-game hour, which added even more stress to a game that should progress naturally and at your own pace. The completionist in me started looking up info online to fill in the parts I missed, and once you go down that route with a Zelda game, it takes most of the enjoyment out of playing.
I liked that it was different, and eventually I will beat it, I just have a hard time loading it up again.
Adding another game to the list, R4: Ridge Racer Type 4 for PSone, while my favorite arcade racer of all time, had such a tedious way of unlocking the 300+ cars, that I never got around to finishing it. For anyone that has ever played it, you know how annoying it was to memorize your finishing placement patterns in all the GP races (which you had to literally play hundreds of times), forcing you to throw races in the name of unlocking cars...