Yes, for sure!
And, there's a certain amount of success you can have even with awful fundamentals/game if you just respond to the signals you get and make moves.
Some attraction is just raw biological attraction, based on things like facial similarity and immune gene compatibility. Women who are facially/immunologically/other biologically compatible with you will be attracted to you even if you look a bit sloppy and are off your game. Of course, you still need to be able to lead them to getting together with you. So you still need to make moves, be confident enough, and know what you're doing.
Beyond that though, yes, you must use fundamentals and game to improve the range of women you can succeed with, and how well you do with them / how easy it is for you.