Taiko no Tatsujin Portable 2 - Platform: Sony PSP

"Master Play" Modifier:
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Enter "Masutaa" as your name (in hiragana) to activate the Master Play mode. 
It will make all the notes hidden.

If you cant read the hiragana well, here is the sequence you need to enter 
it as (all directions are from the upper left corner):
Ma: Down 3 times
Su: Down 1 time, Right 2 times
Ta: Down 1 time, Right 5 times
A: Down 5 times

"Speed x2" Modifier:
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Enter "Baisoku" as your name (in hiragana) to activate the Speed x2 mode. 
It will make all the notes scroll 2 times faster.

If you cant read the hiragana well, here is the sequence you need to enter 
it as (all directions are from the upper left corner):
Ba: Down 6 times, Right 5 times
I: Right 1 time
So: Down 1 time, Right 4 times
Ku: Right 7 times

"Speed x3" Modifier:
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Enter "Sanbai" as your name (in hiragana) to activate the Speed x3 mode. 
It will make all the notes scroll 3 times faster.

If you cant read the hiragana well, here is the sequence you need to enter 
it as (all directions are from the upper left corner):
Sa: Down 1 time
N: Down 4 times, Left 1 time
Ba: Down 6 times, Right 5 times
I: Right 1 time

"Speed x4" Modifier:
--------------------
Enter "Yonbai" as your name (in hiragana) to activate the Speed x4 mode. 
It will make all the notes scroll 4 times faster.

If you cant read the hiragana well, here is the sequence you need to enter 
it as (all directions are from the upper left corner):
Yo: Down 3 times, Left 1 time
N: Down 4 times, Left 1 time
Ba: Down 6 times, Right 5 times
I: Right 1 time

4 times speed
At the name entry screen enter your name as YONBAI (in katakana). The speed 
that the notes appear on the screen at is increased by 4.