Balance & Performance Update — ProtectHeart Steam update #738542

- Hitboxes are now managed by bullets instead of enemies, this should help frame rate when fighting red and grey/black blimps - Buffed speed upgrade 5 -> 8 - Changed how turtle health scales with wave completion - Turtles will now spawn slightly slower naturally 0.45s -> 0.55s - Red blimp health change 100 + damage * 65 -> 50 + damage * 65 - Black blimp health change 250 + damage * 500 -> 200 + damage * 100 - Fighter Jet health change 1000 + damage * 650 -> 500 + damage * 400 - Bullets will now de-spawn faster once off screen - Bullet hitbox size is slightly increased