The Tezuka legacy lives on...
Basically there havent been many good frantic original 2D side scrolling shooting games since the days of Genesis and Super Nintendo. This makes Astro Boy: Omega Factor all the more of a welcome relief as it gives you everything you love in a Treasure game and tops it off by paying great homage to the work of Osamu Tezuka.
The boss battles are challenging and frantic and it always gives you sharp graphics while doing so. It really minds you of the old school days of Sega and how those types of games hold up so well, especially gameplay wise.