I may have some answers. The powerup charges were random chance based on a 50% chance from hitting the spinwheels. The not being able to shoot may have been due to the iguana roll or the health roll as the health roll was supposed to prevent shooting for a small bit. If not, I am not sure. I will be clearer however on the rolls. The duplicating crosshair is something that was not supposed to occur and I will look into that. But I am glad you did like the game! Thank you!