How do you get more life in Megaman 3 for GBA

There are items called HP MEM you can find em almost every where yes maybe even in a garbage can at a zoo or the side of a ramp on some scary island they are also at sold by Net traders who sell stuff including HP MEMS you also find them as those blue diamonds you see scattered all over the net called mystery data you also install parts called navi customizer parts that give you extra life you get the navicust after dad repairs your PET at Yoka