Better Space Invaders for the Atari 2600

Let's invade YouTube!<br /><br />This is a hack of Space Invaders written in 1991 by Rob Kudla (this here is the NTSC-version, although a PAL-version also exists), which makes the game look more like the Arcade-version.<br /><br />Well, usually I don't post hacks of Atari 2600 games (will be probably the first and the last time), but because of techromancer1's open tag, I thought "Ah, what the hell!"...