No mapping challenge is complete without some RandomWizard three-tile-wide hallways with pillars in the middle…
Ī̢̳͈̥͎̝̍͐͊̎͘N̺̣̰̟̣̯̦͚͑̀̋̽̆̉̿̕͜͟ H̨̞̘͓͉͖̾̌̍͘͢͡E̸̯̗͇̪̠̹̹͎̔̽̍̌͢͜͞L̩͈̯̜͈̫̀̈͊̒̍͢L͎̺͍͔̞̑͋͛̇̓̿͢!
Tileset is Zoramine’s Updated Lava Cave.
Download the map here. Free to edit, with credit.
Alternatively, here’s a significantly less S̻͔̪̻̬̆̄̌̂̆̌Ậ̛̣̬͔̮͖̖́̓͛̏̓̓͘͢T̸̥̮̯̯̜̜͗̌̂̚͡A̴̦̥̲̠͙͈͇͔̿́̾͌̅̔̕̕͜͡Ņ̶̤͕͉͖̗̑̃̊̉̐̈́I̵̥̦͚̘͖̥̯̥̎͗̇͌͊̚͜ͅC̢̤͙͚̟͍̤̉̔̏̀̿̈́̂ version. Same tileset, same rules on using and editing.