win strategy:
1) first you buy gun
2) jumbotron
3) 3 golf balls (4 total)
4) jumbotron upgrades
shop priority (without jumbotron and golf balls (these are on 0th place)):
1) faster level up
2) bigger ball
3) fan support
4) firecrackers
5) speed
There's no collision between ball and player so you can just be inside the ball after 2-3 size upgrade and you're invincible.
that's boring