one more thing, have you not even played my game? Do you not see how scarily accurate the popping physics are compared to axel's? Compared to axel's, I'm seeing that he may be using touching blocks and that isn't very optimal. I use distance formulas so that i can tell exactly what I'm hitting, hence every tack being separate in the tack shooters, axel uses a single sprite for his tack shooters meaning every bloon has to determine what it's being hit by. So he splits all different kinds of projectiles into each their own sprite so that the bloon knows what it's touching, I did this in BTD1 but i learned from my mistake. So I became smarter and coded my game the way it is now! Btw, i have 2 other bloons games, each improving on the other, I've only seen like maybe 3 other projects axel has related to bloons but I dont see any improvement except maybe some. Otherwise he just likes using CoolLeviX's base code. But hey that's just a theory.