I loved the fact that Ash met Gary on the boat, and Gary was actually taking a holiday. I felt kinda bad for Ash, what with him still working hard.
What's with the pink shirt Gary was wearing? lol
The riddles were pretty neat, like the one about the clock. Blaine's a smart guy. Plus, I love the location of his Gym. A bit of flat surface suspended above a pool of real lava... awesome. Squirtle was horrible, Charizard was shameful, and Pikachu was the only one who did anything worth a damn. (Aim for the horn! lol)
I loved Magmar vs Pikachu. That Magmar was freakin awesome. The cliffhanger was also wicked. I rather enjoyed this episode ^^