/// THE UNIVERSAL CHILD'S PLAY PATCH WAS UPDATED!! ///

How to play "Tennis no Oujisama: Motto Gakuensai no Oujisama" on your DSTT and R4

1. Download Patch.rar and get a Patch.exe file from the RAR archive.

2. Drag your ROM and drop it onto the Patch.exe. That's all.  

Note:
This path is not only for "Tennis no Oujisama: Motto Gakuensai no Oujisama". It's one of game to be patched by Universal Child's Play Patch.  

The file having the ".bak" extension is the backup copy of the original nds file.

Credit to Rudolph.