Ah....do you lose a health point if you access a memory trigger without the required memory asset? Same thing happened to me on level two when I attempted to access the grey memory trigger without unlocking the shoe first?
Also, on a second attempt at level two, after again trying to activate the grey memory trigger without the shoes (and two health points) I found myself getting stuck in an area to the right of the grey memory trigger. It was like invisible colliders had popped up, and I couldn't move out of the are bounded by the grey vertical lines. Weird. Also, are there any plans to animate the yellow dog? I mentioned this waaaay back at the start of term, so just checking.