Thunder Tower is a location in Mother 3. It is constructed by the Pigmask Army for the purpose of destroying the homes of Tazmily Village residents who refuse to accept Happy Boxes, with Lucas' home being one of these targets.

In Chapter 5, Lucas and friends infiltrate the tower, but not before making the Pigmasks believe Lucas is actually the Masked Man, their commander. The party ascend the Thunder Tower, but towards the top they must face the obstacle of the Pork Trooper, who challenges them. He loses, but he remains unashamed, as the identity of the Pigmasks' "commander" is exposed to be no more than Lucas in disguise.

The party is chased through the tower by Fassad and two other Pigmasks until they come upon a room inhabited by a robot maid, Ms. Marshmallow. She reveals that the room belongs to "King P", and that she must punish Lucas and friends for touching King P's personal yo-yo. (Note: This encounter is entirely optional, and can be avoided simply by not touching the yo-yo.)

Once she is defeated, the party make way to the tower's generator, where a robot guarding it concludes they are a threat, and another battle ensues.

Reaching the top of Thunder Tower, Lucas and friends encounter Fassad once again. Since the tower is no longer usable now that Mr. Genetor has been defeated, Fassad decides to blow up the tower and kill the heroes simutaneously, and attempts to escape using an airship. The confrontation is made short when the tower shakes and causes Fassad to slip on his own banana peel, falling from the tower's summit. When the airship flies by, Duster grabs the ladder with the help of Rope Snake. However, as everyone is grabbing hold of Duster, Rope Snake cannot support the mass of four individuals; he loses his grip and the party falls to the earth far below.

In Thunder Tower, Lucas and friends may commonly encounter Battery Men, Minor Robots, Screwlooses, Short Circuit Zaps! and Whatevers. The Fierce Pork Trooper, Li'l Miss Marshmallow, Mr. Genetor and Surprise Box serve as the venue's bosses.