This video shows a playthrough of Class 7 of the Gauntlet in Mario & Luigi: Bowser's Inside Story for the Nintendo DS. This includes the X version of all bosses and the secret final boss fight against Bowser X.
00:06 Durmite X
00:51 Kretin X
02:28 Wisdurm X
03:20 Bowser Memory MLX
06:48 Junker X
09:50 Dark Star X
18:44 Bowser X
マリオ&ルイージRPG3!!! バトルコロシアム (クラス7)