Here's the poster of SMBGT - Onaga Koopa Story Arc.
The storyline is based on One Piece - Drum Island Story Arc and One Piece Movie 9.
Jadette playing as Tony Tony Chopper, but she hate Koopa Troopas, except her father figure Dr Hiluluk Koopa, the old koopa as a quack doctor who was playing also Dr Hiluluk from One Piece.
Hiluluk Koopa's dream to finish his research, to cure every Toad people and Koopa Troopas in Ice Land.
And Dr. Drake Koopa was a younger brother of Hiluluk Koopa who was playing Dr Kureha.
Unlike One Piece, the people in Ice Land called Jadette and Drake Koopa for Master Doctors.
Speaking of Jadette, her parent are killed by Onaga Koopa and his army, when she was 4 years old and running away.
In the future, her fate is changed when Mario and his friends arrives to find the third Crystal Star and cure Tiff's little brother.
Celine and Dr. Drake Koopa (c) Yours truly
Onaga Koopa (c)
Onaga Koopa Jr (c)
Mario and Kirby characters (c) Nintendo, HAL Laboratory Inc and Warpstar Inc
Super Mario Bros GT The Grand Adventure aka SMBGT TGA (c) Yours truly
One Piece (c) Toei Animation, Funimation and Eiichiro Oda