Nice game. Here some tips.
Terminator Girl - Deflect her shots.
Eye Scream - Deflect 3 missiles.
Optimus - Deflect missiles until the arm drop-out, after this keep hitting his leg, and don't forget to cut his head off after he fall
RJC - This is a bit easy. Walk to right a little then press A
So... NICE game brotha' ! (aways are, of course, you're 53xy83457 !)