The idea of a naturo-running grandma fixing bugs old school style made me chuckle, heh, noice one.
Graphics wise, it's pretty simple but it fits overall and is consitent, that's what matters the most.
Unfortunately, I can't seem to experience the full game. I absolutely can't get over the first jump on screen 2. Are you sure the jump isn't framerate dependent ? I can't seem to interact with anything, nor jump over the gap. I tried both the WebGL and Win-Standalone versions.