From the Super Mario Wiki
Light-Up-Lift Tower, or Rock-Candy Mines-4, is the fourth level of Rock-Candy Mines in New Super Luigi U. It is unlocked when Smashing-Stone Tower is completed, and its completion unlocks Rising Piranhas.
The level starts in a dark cave, next to two ? Blocks. Two Light Blocks are found lighting up the terrain, and begin to rise once they are touched. More Light Blocks also go upwards and join the platform. Two Koopa Troopas and a P Switch are found on Light Blocks. Two Fire Piranha Plants are found on the walls. More Koopa Troopas on Light Blocks are found, along with a Big Venus Fire Trap on the wall. A platform with a Fire Snake and three ? Blocks is found, with the middle ? Block containing either a Super Mushroom or a Fire Flower depending on the player's form. Two Big Venus Fire Traps are found on the walls, along with two more found on Light Blocks. A Warp Pipe is found at the top of the area, and leads the player outside, where a Big Venus Fire Trap and the Goal Pole are found.
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