Original sentence: Ports exist for Linux, Windows, RISC/os, and PS2 Linux made possible by using SDL.The audio is similar to that of Robotron and Defender.The enemies are not limited to asteriods.The game features a mouse-based control system.The game features several deviations from the original game, such as:.The graphics have up to 130,000 pixels
Edited sentence: According to the web site description, this game distinguishes itself from other games in several ways:.Ports exist for Linux, Windows, Risc-os, and PS2Linux made possible by using SDL.The audio is reminiscent of Robotron and Defender, and makes a powerful impression.The enemies are varied and interesting (these are not just asteroids).The graphics have up to 130,000 pixels, creating dramatic explosions.The mouse-based control scheme is spot-on and designed perfectly for this type of game