World 11-4 (Super Mario Maker for Nintendo 3DS)
From the Super Mario Wiki
World 11-4 is the fourth and last level of World 11 of Super Mario Challenge from Super Mario Maker for Nintendo 3DS. This level is one of four levels that has a Castle in the sub area, but not the main area. This is the only one to be the last level of a world.
At the beginning, the player gets a Fire Flower and a Spiny Shell. This level contains three different paths: a Blue Lift, a winged Blue Lift, and Blue Lava Lift. Each, having their own difficulty shown by an even number of Spike Traps. The harder the difficulty, the more Coins before the flag, and more points. After choosing the hardest path, the player must avoid Grinders. After this, the medium path joins, and the player must avoid Bumpers. After this, the player must avoid Hammer Bros and a Sledge Bro. After this, the easiest path starts with Goombas nearby before it joins. After this, Big Goombas need to be avoided. If the easy path is taken, Big Koopa Troopas, Big Buzzy Beetles, and Big Koopa Paratroopas need to be avoided, but if the other two are taken, the player must avoid a Big Muncher and a Winged Big Muncher then avoid Chain Chomps. After the paths join again, the player must avoid Fire Bars. At the end, is a Hammer Bro., Bowser Jr., or a Big Bowser for each difficulty before going into the Warp Pipe.