Transportalizer

A Transportalizer is a pedestal-shaped device used to transport people and objects up or down to another level. The central stairwell of Jade's House features a series of Transportalizers (Jade never takes the stairs). There is also one located in the laboratory near Rose's house, which, in Act 3, Jaspers' body is accidentally teleported by.

Curiously, it features the same pattern seen on the Alchemiter and Appearifier. (pic?)