Cool game! It was too difficult for me though, because of three things
- shrooms run as fast as tank, and as they spawn all around you, eventually they surround and catch you
- shrooms don't die at contact and continue to apply damage, would be better if they for example exploded
- shrooms kinda stick to the tank (due to the same speed), making it less mobile, and even catching it from two sides and killing it
Overall experience was fun. Great job!