How do you make an taller map on transformice?

To create a taller map in Transformice, you need to use the map editor and adjust the height of the map layers. You can do this by dragging the edges of the map canvas up to increase the height. Additionally, make sure to utilize the "Blocks" and "Decorations" tools effectively to design your map while keeping gameplay in mind. Once you're satisfied with the design, save your map and test it in-game to ensure it works as intended.