There is no "Iron Top" in PokéPark Wii: Pikachu's Adventure. You're likely thinking of the **Iron Plate** (held item, boosts Steel moves) in the **Pokémon Mystery Dungeon** series.
| Game | Location | Details |
|---|---|---|
| Explorers of Time / Darkness | **Ruins of Alph** — Room with two **Rock Wrecker** (Rhyperior) statues. | Post-game dungeon. Need Rock Climb / Mobile Orb. |
| Explorers of Sky | **Sky Tower** — Area with two **Magnemite**. | Near top. Magnemite drop / hidden in wall. |
| Gates to Infinity | **Glacier Palace** / **Great Spire** — Post-game. | Random drop from Steel-types or Deluxe Box. |
| Super Mystery Dungeon | **Connection Orb** missions / **Looplets** synthesis. | Craft: Iron + Iron = Iron Plate. Buy at Kecleon Shop (rare). |
| Rescue Team DX (Switch) | **Solar Cave B15F** / **Mt. Faraway 40F** / Kecleon Wares. | Also from **Strong Jaw** looplet synthesis. |