Our heroes proceeded downstairs and was once again stopped by another Rocket whom sent out a Zubat. "[i]Zubat, the Bat Pokémon. It has no eyes. Instead, it relies on its ultrasonic cries for echolocation to flit about in darkness.[/i]" Shiranui responded with Tetsu. Zubat was KO'd with one Iron Head from Tetsu and the next Zubat fell in the same way.

A Raticate was sent out and immediately clobbered the Aron with a Quick Attack, though it only left a scratch. "[i]Raticate, the Mouse Pokémon and the evolved form of Rattata. It whittles its constantly growing fangs by gnawing on hard things. It can chew apart cinder walls.[/i]" Tetsu used Iron Defense in time to fend off a Bite attack that left a scratch. Tetsu used Iron Head to knock Raticate out and a Koffing was brought out. "[i]Koffing, the Poison Gas Pokémon. Lighter-than-air gases in its body keep it aloft. The gases not only smell, they are also explosive.[/i]"

Koffing tried to use Clear Smog to nullify Tetsu's Defense boost, but the Aron was immune to the attack and a critical Iron Head took Koffing out.

Last was a Grimer. "[i]Grimer, the Sludge Pokémon. Appears in flithy areas. It thrives by sucking up polluted sludge that is pumped out of factories.[/i]" Grimer tried a Sludge attack, but Tetsu shook it off. The Aron used Take Down and Grimer barely survived the hit. Grimer used Mud Slap and despite the move exploiting a double weakness, the damage was minor although Tetsu was rendered partially blind. Tetsu sunk a Metal Claw into Grimer and knocked Grimer out. Tetsu had evolved to a Lairon after sweeping the Rocket's team. "[i]Lairon, the Iron Armor Pokémon and the evolved form of Aron. It loves iron ore. Groups of them fight for territory by bashing one another with their steel bodies.[/i]"