The stealth sections in Wolfenstein New Order (and Old Blood). Laborious and non-sensical slogs (Old Blood at least gave the guardbots in its version guns, rather then randomly having nightstick users). Clearly some afterthought or forced inclusion since they don't even have any sort of hud (or proper animations when you're detected).
Dsic 2 of Final Fantasy 7 (Or the end of the Midgar section through to the Northern Crater). Any sense of pacing or tension to the plot just vanishes as the game goes on a 10 hour decision to play tour the world, with detour after detour. It can't even stick on the idea of chasing Sephiroth (which you're given no reason to do, other then him being designated "Bad Man").
I wouldn't say ruined, but its a fresh memory. The Beacon level in Titanfall 2. The first half is a bunch of puzzle mechanics, but they're never actually deployed as a puzzle. There's only one Arc switch that powers whatever thing you need to move forwards at a time. No actual puzzle concept of the mechanic is applied. The second part, with most of the fighting is actually a pretty cool arena, but bogged down by more use of the Arc Tool to open doors (and you can't close them again, which would be an actual tactical mechanic), and the cranes. The cranes, which are just a slow tedious mechanic in a game basing most of its play around speed and mobility. Much like the earlier part of the level, most of them you're just sliding from one position to the other as well, its not like they offer any real puzzle mechanic or variety by being there.
