Takatis

Takatis is a fast and furious 2D side-scrolling arcade shooter faithful to the style of such classics as R-Type and Amiga's Katakis.
The purpose of the game is to guide your spaceship through dangerous territories, filled with enemies and asteroids. While trying to escape all that you can pick up various power-ups. The game features 12 different levels, each with its own musical score, and a sophisticated weapons system, with 3 primary and 3 secondary weapons.

Takatis is impressive and fun to play, well worth the download.