Please load the following link on a mobile device and try a few levels
https://www.newgrounds.com/projects/games/1304935/preview
I'll probably have tappable buttons for the menus in the final game, so ignore the menus. let me know how well you do in the levels on a mobile device.
Hold the phone like a NES controller, slide your thumb in the direction you want him to move, tap to toggle stone power and become invincible
here is a demonstration:
Gimmick
Doesn't work in FF mobile, and shows just the loading screen in Opera, which turns into a blank blue screen afterwards.