You are Elijah Jones, the rough and ready bounty hunter. You're after The Colonel in Little Prospect. This is a town of dust and wooden buildings. You have to destroy 3 wanted posters on easy, 4 on medium. There's "Gunsmoke" sort of music.
For non-easy, jump immediately to dodge the point-one-second attack that comes at you. On the left side of Sherrif building is a poster. Use "A" to rip. The Sherrif is in a cell. For medium, the second poster is by the kegs in the saloon.
Go around back behind and blow up TNT in wagon. On easy you can just shoot it ... after that, lay a trail of gunpowder from the exploding crate to the TNT and shoot the crate. Once the jail wall has a hole in it, she excapes through hole. Now she says to go get colonel. He's at the mines.
As you head towards the mines, "put out fire and rescue girl". You see the fire to the right, and have to shoot holes in the water barrels over her head. She says "Healp Healp" and "Mah Hero" while showing quite a bit of cleavage. A-ha. On medium, another poster is on the side of the general store.
Checkpoint at end of street. You pick up some Garrett Revolvers. There's a poster on back wall up stairs at house on right of mine entrance. Now head in the mine - time crystal located, armor on right.
On medium you have to use the switch first in the mine house in the center of the mine area, but on easy the switch is already set properly. Push the ore cart and follow behind. It'll ride the track and blow a hole in the far wall. Now you have an enemy bar for the colonel. He's the one with the confederate hat on. Note if you pull the rope in the high building it makes whistle sound. Neato!
Now follow the tracks in - time portal stabilized. Get crystal. When you get it, invisible monsters from previous level are here. Kill them and a time portal opens on lower level. Get down to it carefully and you're set.
Easy win: nothing
Medium win: new character - the colonel