Grandma Wilma in a house on Route 210 will teach it, but the Pokemon must have a high friendship level
Route 117 is in Pokemon Emerald. You can't get there.
There is no route 233 on Platinum, Diamond or Pearl.
Not really that rare... in Pokemon Diamond you can find Sunkerns on Route 204
In Pokemon Diamond/Pearl, you find a old man at route 212 with a Leafeon.
it is a pokemon that can transform into any pokemon and you can find it in a route close by canlave city
Just to tell you their is no route 426 in Pokemon Diamond.
Route 117 is in Pokemon Emerald. You can't get there.
Route 212
There are two: Route 228- he teaches frenzy plant, blast burn, hydro cannon (only to the 12 starter Pokemon) Route 210- she teaches Draco Meteor to any dragon-type Pokemon (and arceus if it's holding the dragon plate)
Meteor Falls is southwest of Fallarbor town near Route 114. It is the cave in the bottom left corner in Route 114.
all the Pokemon on route 210 in Pokemon diamond and pearl are ponyta, geodude and if your really lucky you can find onix.
Route 225 is not a route that can be found in Pokemon Firered, route 225 is in Pokemon Diamond, Pearl, and Platinum. To get there is Diamond Pearl and Platinum, you have to see every Pokemon in Sinnoh, then talk to Prof. Rowan and get the national dex.
There is a constant sandstorm on route 228 on Pokemon Diamond. It is not possible to ever remove this sandstorm.
You can find this Pokemon in route 228.
In Pokemon Diamond and Pearl, Phanpy swarms on Route 207.
It is south west of Fallarbor. Meteor falls is there.
Slowpoke cannot be caught in Pokemon Diamond. This Pokemon can be found on route 205 in Pokemon Pearl using the pokemon radar and traded to Diamond.