I got destroyed my the big guy :(
It is a bit chaotic and difficult to undertand at first but you end up getting how it works. I dint know if I need to shot teh enemies more that one (when they dont have the shield on) or if the collissions were not working.
It felt a bit punishing that it has 10 lives and I only have 3 but everytime I got a life out of him he rams me in a pretty difficult to dodge attack. I got to lower him to 5 :)