There is another unofficial Astro Boy fan-made Flash game out there. Astro Boy Ultimate Dodge puts you in control of Astro as you use his multiple jumping, hovering, and dashing skills to clear a course of deadly obstacles.
This game is not to be entered into lightly! The levels are incredibly hard. It takes skill and patience.
Get used to seeing this image a lot.
Aside from the futuristic setting, it actually doesn't seem to have much to do with the Astro Boy universe, but it's interesting all the same to see the character like this.
This site is dedicated to everything Astro Boy, the works of Osamu Tezuka, and other related anime & manga. Whether you're an old-school fan, a newcomer, or anything in between, AstroBoy World is bound to offer something interesting for you.