How do you adjust handlebars on Genesis 26 Men's V2100 Dual Suspension Bike?

The pic I found shows a regular aheadset stem, and those don't allow for much adjustment. You can loosen the front clamp a little and rotate the bar, you can flip the stem over to lower the bar, you can loosen the steerer tube pinch bolts and adjust the alignment - but that's about it. If you want the bars higher you have to get another stem, one with more rise.