. . . . "New Super Mario Bros. U"@en . . . . . . "Lemmy's Swingback Castle"@en . "Lemmy's Swingback Castle is at the end of Acorn Plains . This is also the first Koopaling Castle in the game. This level is guarded by Lemmy Koopa which his airship is flying around the castle which he fights inside. When Lemmy himself is defeated Mario stomps around on his airship , which flies from the castle and crashes somewhere in Layer-Cake Desert where Morton Koopa is."@en . "Lemmy's Swingback Castle is at the end of Acorn Plains . This is also the first Koopaling Castle in the game. This level is guarded by Lemmy Koopa which his airship is flying around the castle which he fights inside. When Lemmy himself is defeated Mario stomps around on his airship , which flies from the castle and crashes somewhere in Layer-Cake Desert where Morton Koopa is."@en . . . . . . . . "Lemmy's Swingback Castle, also known as Acorn Plains-Castle, is the castle level of Acorn Plains and the first castle level of New Super Mario Bros. U. The level is filled of lava pits and swinging platforms that make for some difficult jumping. The course is the final course of the Flying Squirrel Pack."@en . "Lemmy's Swingback Castle, also known as Acorn Plains-Castle, is the castle level of Acorn Plains and the first castle level of New Super Mario Bros. U. The level is filled of lava pits and swinging platforms that make for some difficult jumping. The course is the final course of the Flying Squirrel Pack."@en . "Lemmy's Swingback Castle"@en .