Thanks! I'm really glad you liked it and had fun.
This is valuable feedback thank you. We tried to show that by having the large orange effect around him. Was that perhaps not rendering for you (graphical glitch)?
RE: "bacl hole mechanic". Thank, you, I really appreciate this feedback. I will work to make this clearer in the future. It is supposed to just be a second projectile that sucks up other projectiles and if you kill with it, it heals you.