The General Masters/K-Tek formula seems to have been: put the player somewhere on the screen, then throw stuff at the player until he/she dies.
This is a boring formula when you're dodging asteroids or rocks, but when you're dodging a herd of BUFFALO...that's pretty cool. Especially since, in this game, your cowboy waves his arms like a terrified schoolgirl with wet nail polish.
But it just goes on and on. Dodge dodge dodge. Then you die. Like life.