I tryed to implement them, but it made the game much harder than expected, so they became the red enemies that follow you.

Thanks for the feedback, it's in the description. When I update the game, will try to make a visual feedback that delivers what they do.

Thanks. The first time I've implemented it, it was way to hard to collect, because you had to pass right in the middle of it. So I've made it follow you if you're close to make it a little bit easier and more satisfying.

I agree with you. I've entered the Jam way to close to the dead line so I kind of didn't had time to made them look diferent (but I've tryed to make them unique perks to feel a little bit different from eachother).