Powers: G-Force can affect gravitational forces, making himself extremely dense and resistant to being moved, generating waves of force to attract or repel others, forming bubbles of force, and projecting destructive energy. He can fly and survive in the vacuum of space unaided.
G-Force's powers are linked to his emotional state. he needs to concentrate to use them, but it also means that if he is scared, or reacting instinctively, or perhaps even having a dream, his control over gravity and his power becomes erratic and a danger to those around him. (If the character had continued, he would have tried to find ways to control his powers both through science and mysticism/meditation)