Super Earth Invasion also does a few things not seen in the original "Space Invaders
1) The saucers that run across the top of the screen shoot back at you when they have a clear shot.
2) Some invaders split apart after you hit them, giving you more invaders to shoot.
3) When you hit a UFO the game shows words (like BAM or POW) instead of points.
4) When you finish a rack, the following gets printed on the screen : "Congratulations of stopping the 1st (2nd, 3rd, etc.) earth invasion. Warning! Superior invaders are on their way".