SMB, SMB2, SMB3, SMW, NSMB, NSMBW.
Yoshi's Island 1 and 2.
SM64, SMS, SMG1 and 2.
MP5 and 8.
SML, SML2 and SM3DL.
Luigi's Mansion (if it counts) and Wario Land.
Mario vs Donkey Kong (GBA)
=
20
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