Proba-Bullet-Y

A top-down shooter based on probability and chance. You play as a square versus other squares, but there's one difference, you have probability on your side plus bullets. 

While fighting these dastardly squares, you can decrease the probability of your bullets chance to damage in return for some other bonuses at yellow areas. But you can also do the inverse, increase your probability to damage in return for a downgrade to your stats. What will be your choice?