Snoopy no Hajimete no Otsukai English translation
スヌーピーのはじめてのおつかい
An English translation by Zynk Oxhyde of Kemco's Japan-only Snoopy puzzle game for the Game Boy.
What it is
Zynk Oxhyde translated the Japanese text of this small Peanuts puzzle game into English. Version 1.0 came out in May 2016 and is listed as fully playable; the game's Super Game Boy features still work.
The release
The patch is catalogued on romhacking.net, which is linked here as its page.
Playing it
The patch goes on your own copy of the Japanese cartridge, following the instructions included with it.