Excellent!
Yeah, really, really good. Always been a big fan of the Riddle series, so when I realised there was a new episode I was eager to try it. I wasn't disappointed.
It was reasonably challenging, but fairly intuitive - it didn't make you try stupid things in an attempt to solve the puzzles. I did have to look up help once, which is pretty good for me, and when I realised I had been looking at the answer the whole time I didn't feel cheated, just pretty stupid that I hadn't solved it myself!
Improvements? Meh, I dunno. I'm never a great fan of sliding puzzles myself, but solved this one in a few minutes, and the later logic puzzles aren't anything I haven't seen before, so I was able to blast through them fairly quickly. Maybe less of these puzzles in the future, though, as I still remember the hour it took me to solve that damn puzzle in Riddle School 5, turning the lights in the right sequence.
I enjoyed the story though, and the overall feel of the game was brilliantly made and very professional. The hairless yeti thing made me laugh the most, while it was also nice to add a bit to the backstory of the other characters. And I like Smiley more now she has hair.
Anyway, great job. Looking forward to Riddle Transfer 2.