IzakTheLion

Hah! There is that one part in the game where you can spin the circle platforms extremely fast and easily made me dizzy!

The Xbox One version of the game runs with a resolution of 1280x720 and is technically running in 720p at a locked 30 frames per second. While this is certainly not the best the Xbox One can display, I saw that there is a video on Youtube that tests the framerate and it looks ok.

Its possible that chapter select messes with your current progress for the achievement you should get next. If restarting the game doesn't fix it, I would try rushing through chapter 5 to chapter 6 in one play-through.

The final achievement requires you to follow a planned route that is otherwise impossible to get! Make sure to watch the video posted on the guide.

This achievement won't unlock if anything else in the game killed the boss. The most common example is with the beaver boss that almost always kills itself on the spikes in the cave. If this was how the beaver died, your achievement won't unlock. Because of this, I recommend to kill each boss at least twice. Just walk forward for the environment to change and then the boss that you just found should spawn again.