If you really think you want to work at Walmart, the ones around here are desperate, pay fairly well for unskilled work, and will hire anyone they think will regularly show up. This is the only real interview criteria, you have to convince them you are available at any time, any day, and will always show up for your shift. This is much harder for them to find or train than any other skill or value. The only other things they are worried about is if you are a drug addict and/or will steal from them.
On the downside, the customers are rude and disrespectful even more than in other retail, the management will treat you like dirt and has less than zero consideration for family obligations, will constantly hammer you to do whatever stupid thing gives them a bigger bonus, will pull you from helping customers to unload trucks, stock shelves or clean because those whose job it is, didn't, etc. etc.