Conditions: After Taiko no Tatsujin 14 code 6 has been used
Number of songs unlocked: 1 - Shimedore 2000 (〆ドレー2000)
Before
After
The above step is Namco's April Fools prank and need not be done to unlock the song. However it will remain here for the sake of posterity.
Hit the rims of the drums the listed number of times in this order.
Player 1 Player 2
Left Right Left Right
7
6
5
14
8
7
6
14
1 1
1 1
If the code is successfully inputted, a cup of green tea will appear on the lower-right corner of the title screen: