Pewter Gym (Challenge Level)

The first challenge mode is a modified version of the Pewter Gym battle, with a slightly different area and a pre-set selection of Pokemon.

Layout
Only wave: an Onix from each side (4 total)

Spots: The level has a cross shape with 4 "arms." There are two spots on each side of each arm. (4 per arm; 16 total)

Defending: A single pokeball

Pokemon
Like the other challenge, Old Rod (Challenge), Pewter Gym has no pokemon that can be caught.

However, also like Old Rod (Challenge) (which gives the old rod allowing Magikarp to be caught), Pewter Gym gives a Mystery Gift code that can be used to get a shiny Geodude.

Pre-set selection of Pokemon
5 Pokemon are given to complete this challenge with.

Common traits: all are level six, have two available moves, and are incapable of gaining experience. While the other challenge is an "attack challenge," it also has pokemon that are all the same level (9) and are incapable of gaining experience.

Pokemon given and move set for each:

Rattata: Tail Whip and Quick Attack

Metapod: Harden and String Shot

Pidgey: Tackle and Sand Attack

Kakuna: Harden and String Shot

Charmander: Scratch and Ember