2250 Taiko No Tatsujin 2 fixed.
The EZTeam released an update for the EZ4 line of flash carts to fix the problem with saves in 2250 Taiko No Tatsujin 2. Simply replace the old DLL file with the new one from the download below.
For those that missed it the EZ5 has a series of new beta loaders out as well.