You may not need to patch the ROM as long as you use DSTT Kernel v1.17a13 rev12. I didn't check it, so let's try!
For R4 User:
Use YSMENU with the same manner of the above instruction as like DSTT. Thus, use R4 YSMENU.
Note: This path is not only for "Eigokoro Kyoushitsu DS ". 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.
This post has been edited by KimYom, Fri, July 2nd, 2010 at 08:09