Finished all level, it become more tricky as more red object introduced, especially the last level. Some level seem too easy though. Very polished games aside from you have to let go a button before changing direction.
Thanks for taking the time to play it and leave feedbacks ! Normally you have the next step of red object indicated by an arrow on the ground. But it's not showing on the WebGL build unfortunately :( We will fix it soon on that platform for sure ! :)