This is DLC you can play in Taiko Mode.

*Song: "MAO-u"
Easy: ★3 Normal: ★5 Hard: ★7 Extreme: ★8

*Song: "Scroll MIKA"
Easy: ★4 Normal: ★6 Hard: ★7 Extreme: ★7

*Song: "Pastel Dream"
Easy: ★4 Normal: ★6 Hard: ★7 Extreme: ★8

*Song: "KARUIZAWAMEKI"
Easy: ★4 Normal: ★6 Hard: ★7 Extreme: ★9

*Song: "INUNONORIMONO"
Easy: ★3 Normal: ★5 Hard: ★6 Extreme: ★8

More details on the official game page of Taiko no Tatsujin: Drum 'n' Fun! Tatsujin Challenge Pack Vol. 2 ...