This game seems… rather easy, or at least the bosses do. Apart from the Martian and the final boss, most of them seem to be literally unable to hurt you if you stand RIGHT next to them.
In fact, they have a temporary invincibility power that consumes ESP, indeed with such a power, it is almost impossible to lose a fight against a boss, knowing that their life is very low compared to the powers that the boss has. heroine possesses. After the levels are not easy for once, its requires a lot of reflexes and anticipation in the switch of power. Try it if you have the chance :)
