Astro Boy: The Video Game (PlayStation 2)

This is a side-scrolling beat 'em up and shoot 'em up combo based on the 2009 animated 3D movie of the long-running character from manga and anime. Astro Boy must save Metro City from President Stone and his robots while fighting through levels on the ground and in the air. In addition to fighting combination moves, he can shoot a laser from his fingertip and use a special attack if the energy meter is powered enough. These include an Arm Cannon, Butt Machine Guns and Absorb (recharges a portion of health). Find different power-ups and costumes in hard to reach and hidden areas.

In addition to singleplayer, there is 2-player multiplayer co-op on Wii and PS2 where the second player controls another Astro Boy with a different costume. In Story Mode, if one person dies, they can later rejoin game with full health after some time elapses. But if both die, then the game is over and must be started over. There's also an Arena mode where both players fight with robots to determine a winner with the most points.

https://www.youtube.com/watch?v=FDC4GPz-hi0