I loved the idea, but had a really hard time with the controls...
The wall jump feels too stick (this is particularly annoying in Sector A), some buttons arbitrarily stay pressed on touch (which is mainly annoying, because then you have to try-and-error what each button does before really thinking about solve the level), in many levels you have to blindly move toward a 4-pixel wide buttons (though you can kinda try and use the tileset to compare your movement).
I was really enjoying it until I got to 3-6. Maybe I'll have been less annoyed without the time limit... Though I'd still continue having those controls issues.