Learn with Pokémon: Typing Adventure

Learn with Pokémon: Typing Adventure is (surprise!) a Pokémon game that continues the proud tradition set by House of the Dead of having a silly English typing trainer spin-off. It was never released in the US, considering the obvious fact that most Americans don't need to be taught English (mostly).

Regional Differences
The Japanese version has kana over the English characters, which of course was removed elsewhere. The names were changed as well to match the English and French naming conventions, and many of the renamed Pokémon in the initial missions got relocated to different paths accordingly to accommodate the tutorial purposes.

The French version uses an AZERTY keyboard layout, while the other versions use the English QWERTY layout.

Unused Banner
An uncompressed, seemingly placeholder graphic is present under the banner directory, seemingly for the DS menu icon. Thing is, the DS uses the compressed icon data from an overlay file under the ftc directory, which applies for the principal game and, if found, the Download Play ROMs. As such, this icon (and another one which is a duplicate of the final) goes unused.

A few DS games share this unused-banner oddity, while in most games the "unused" banner is just a duplicate of the used one.