Mad Hatter Mad Hatter , or Jervis Tetch , is a super - villain and enemy of . He often works as a thief , obsessed with stealing hats to finish his collection of head - wear . He is known for his mind - control technology . Description . Mad Hatter has a large , green top - hat with a darker green band going around the funnel . A yellow tag sticks up from under the band . In " LEGO Batman " it reads 10 / 6 , but this detail was removed for " LEGO Batman 2 " . He has , long , slanted , light brown eyebrows and buck teeth . He wears a green jacket which opens more as the torso goes downwards , first revealing the top of a white , button - up shirt , then a large , red - bow tie , and finally a vest checkered with two different shades of purple . Hatter has yellow gloves and orange legs . On the portable versions of " LEGO Batman " , he has short legs . In " " , the Mad Hatter is a boss and a playable character . He carries a small handgun , can double jump ( due to a propeller built into his hat ) , and use mind control on certain targets or to open certain doors . He is unlockable for purchase after the level , " The Joker ' s Home Turf " . He also has two playable vehicles , Mad Hatter ' s Steamboat and Mad Hatter ' s Glider . Other than roam around in their respective environments , water and sky , and in the glider ' s case , shoot lasers , they have no abilities . On the Nintendo DS version , he is able to go through chutes and drop bombs to destroy silver objects . In " LEGO Batman 2 " , both of these abilities are removed . He now uses just a melee attack and can jump no higher than Batman . Background . Jervis Tetch became obsessed with the lunacy of " Alice ' s Adventures in Wonderland " and its sequel , " Through the Looking Glass " , especially the chapter " A Mad Tea Party " , to the point where he believed himself to be a reincarnation of a character known as " The Mad Hatter " . Jervis Tetch became a thief known as Mad Hatter to finish his collection of headgear . He is also known for his hypnotizing and kidnapping schemes . In the Video Games . In the video game ' s story , the Mad Hatter was a part of the Joker ' s group , which also consisted of Killer Moth , the Scarecrow , and Harley Quinn . Mad Hatter traveled to the factory where The Red Hood transformed into The Joker to retrieve special chemicals for The Joker . While investigating , Batman and Robin came across and defeated The Mad Hatter . He was sent back to Arkham Asylum . On the console versions of " " , Mad Hatter is a playable character . He doesn ' t play any role in the main story . Mad Hatter appears outside Gotham Theatre after Asylum breakout and can be purchased after defeating upon him for 100 , 000 studs . He doesn ' t have special abilities . On the portable version , The Mad Hatter appears as a boss in the level " Arkham Asylum " . His minikit can be found on the same level by using a super - strong aquatic character such as Aquaman or Killer Croc to break the door of an underwater cell containing it . He costs 60 , 000 studs . In " " , Mad Hatter , along with Deadshot and Deathstroke , can be unlocked during free play , in the mission " Big Trouble in Little Gotham " .