When I was a lad in
Sapphire Version, I, er, "discovered" the elemental Hyper Beams (Blast Burn, Hydro Cannon, Frenzy Plant) when I had a Mew use Metronome somewhere near Oldale Town. Strangely, these didn't appear in the pre-filled list areas (i.e., the thing you can fill in as a response when Gabby & Ty interview you).
Cue me spending
hours training certain Pokemon like Camerupt (or was it Torkoal?) to find out if they could learn Blast Burn. I also spent a long time using Metronome again just so I could confirm that I saw those 3 moves and that it wasn't my mind playing with me (as well as to enjoy their resplendent animations). Thankfully,
FireRed and LeafGreen Versions were released and I finally solved the "mystery" with the assistance of the old lady at Cape Brink in the Sevii Islands. :cer_laugh:
I can't remember much of the Metronome moves that I received other than the above, but I'll try to take note of some in the future. I'm typically scared of the move in the Battle Frontier, on the account that some random foe will unleash Explosion on my Pokemon (and as you might know, quite a few Normal-type Pokemon that learn Metronome would get STAB on this :x). On a related note, I recall a time when the move Assist let me use/borrow Kyogre's Water Spout. Great times.
wtf Quiver Dance Togekiss IMBAAAAA!!
I know, right? That's scary stuff. I would freak out if a
Blissey somehow managed to perform that feat.