The problem I have here is the green blocks in the map. At first I thought they were obstacles. Probably if they blink or shine, they will look a bit appealing, so it makes more sense to think its a collectable.
Thank you a lot for the feedback! I received a similar feedback from a friend, but didn't have the time to implement. But since it could cause some confusion, I updated the game page to include some helper image on this.
