Comparison between the shortened R-Rated version from Image Entertainment and the Unrated version which was represented by the uncut German DVD from Anolis.
Jake West's madly funny and ultra gory alien-spoof that contains many movie quotes was released both as an uncut version (Unrated) and as a cut version (R-Rated) in the USA.
At some of the more explicit parts of the movie the R-Rated version uses more harmless shots that cannot be found in the normal, uncut version, also, some of the scenes have been slowed down in order to make the cuts less obvious.
Cut version = 86:25 min.
Uncut version = 89:22 min.

Cut length of the R-Rated version = 176.7 sec.

00:00 The CONTENT FILM logo is only in the Unrated version.
7.5 sec.

03:10 The R-Rated version is lacking scenes of the drill slowly approaching the captivated guy's bottom. He starts farting. Eventually the drill cuts into his rear entrance.
12.7 sec.

Unrated:

Therefor, the R-Rated version contains a shot of the drill (without the bottom) that is not in the Unrated version.
+ 1 sec.

R-Rated:

03:13 Close up of the drill drilling further into the guy.
0.8 sec.

Unrated:

Again, the R-Rated version contains a more harmless shot of the drill.
+ 0.8 sec.

R-Rated:

03:18 In the R-Rated version the image slowly fades away and the title fades in. The Unrated version shows some gory details of the drill in the anus. Cut to the alien pulling out the drill. Blood is splattering, right onto the camera. Just then the title fades in in the Unrated version.
4.6 sec.

17:50 When the Williams brothers watch Michelle and Ricky having sex the R-Rated version does not show how one of them reaches an orgasm and how sperm is splashing against the wall.
1.9 sec.

In exchange, the R-Rated version has shown one of the earlier shots a little slowed down. So here, the R-Rated version is a little longer.
+ 0.8 sec.

25:00 In a flashback of Cat Williams a shot of the drill in front of her friend's bottom is missing.
1 sec.

In exchange, some earlier shots in the R-Rated version have been slowed down, again, in order to hide the cut.
+ 1 sec.

25:15 Again in Cat's flashback: Close up of her stomach being opened.
0.8 sec.

Unrated:

In exchange, the R-Rated version contains a shot of one of the aliens.
+ 0.6 sec.

R-Rated:

25:18 Her stomach is being sliced further.
1.3 sec.

Again, in the R-Rated version, the previous shot has been slowed down.
+ 1.3 sec.

25:23 Shot of alien hands digging into her stomach.
0.8 sec.

Once again, the R-Rated version has shown the previous scenes a little slower.
+ 0.8 sec.

38:45 We see Cat is transforming and spitting blood on a mirror a little longer. Insert of her stomach moving up and down.
6.5 sec.

38:51 More shots of the mirror covered with blood and slime and Cat whose stomach is curving. 3 sec.

38:58 When Cat is snatching the skin of her face this is a little shorter in the R-Rated version because of some skillful editing techniques.
3.5 sec.

40:13 After the alien has piled the knife into one of the Williams brothers' stomach the alien waving about with the knife is missing. The guy spits blood. Eventually the poor guy loses both his arms and goes down screaming.
5.5 sec.

40:17 When the alien decapitates the guy with a tentacle the R-Rated version does not show this as explicit as the Unrated version.
0.9 sec.

40:24 This is completely missing in the R-Rated version:
the alien puts two fingers through the back of the separated head to make the eye balls shoot out. They land in the mouths of the other Williams brothers. Llyr, the oldest, swallows it while the other one spits it out.
7 sec.

40:49 After Llyr shot a load of lead the R-Rated version does not show the bullets slashing the alien's face gorily.
0.8 sec.

Unrated:

In the R-Rated version the alien simply falls after the shot.
+ 0.7 sec.

R-Rated:

41:14 When the guy saws up the alien with the chainsaw we see the alien's arms and legs flying through the air just as a shot of the legless and armless alien.
9.1 sec.

48:02 After the arrow has pierced the alien Michelle gets blood splattered in her face.
1.3 sec.

48:37 After the 2. arrow has gone through the alien we see Bruce getting blood splattered in his face.
1.2 sec.

48:55 When Alien-Cat spikes Bruce "Cannibal Holocaust like" with the pole a shot from Worm's-eye view is missing.
1.2 sec.

49:02 Cut, how the pile tip breaks out of Bruce's mouth and how blood is splattering. Some of it slides down the pole.
3.6 sec.

51:38 When Candy shoots an alien from the bus the end of a shot is missing: we see the back lights of the bus through a hole in the alien.
1.6 sec.

58:00 In the R-Rated version we still see the female alien pressing Gavin between her breasts. After that, a complete sex scene between them (with fast editing) is missing. At the end Gavin reaches climax, squirting a ridiculous amount of sperm.
32.7 sec.

58:04 A tracking shot down Michelle's body fades away earlier in the R-Rated version. We see aliens planting an embryo inside of her.
4 sec.

64:26 After Ricky ran over the aliens with the bus a few shots from the inside of the vehicle are missing: the passengers are given a good shaking and blood is splattering against the windows.
1.9 sec.

65:56 Short shot of Ricky beating the alien which is lying on the ground with a cricket bat on its helmet.
0.6 sec.

65:57 He hits it several more times.
2.7 sec.

65:59 Close Up of the blood spitting alien such as a shot of Candy, Llyr and Ricky. The latter hits it in the face one last time literally smashing it.
9.6 sec.

67:26 A little more blood is splattering on the windshield of the harvester.
1.3 sec.

67:33 This time a complete shot of Ricky behind the shield is missing that shows how body parts and blood keep splattering against the shield.
2.9 sec.

Unrated:

Therefor the R-Rated version shows the following shots slowed down a little and one short shot cannot be found at all in the Unrated version.
+ 2.9 sec.

R-Rated:

67:57 Short shot of the bloody shield.
0.4 sec.

67:59 Shot from the cab.
1 sec.

Unrated:

Therefor the R-Rated version contains a shot of Ricky's hand and before that some shots have been slowed down, again.
+ 1.4 sec.

R-Rated:

68:02 Again, we see Ricky a little longer. Body parts are flying by.
0.6 sec.

R-Rated version slows down a shot, again.
+ 0.6 sec.

68:05 Shot of the bloody windshield.
0.8 sec.

Again, the R-Rated version shows some scenes slowed down.
+ 0.8 sec.

68:06 Same here.
1 sec.

Unrated:

Again, slowed down scenes in the R-Rated version plus an additional shot.
+ 1 sec.

R-Rated:

68:09 Same here.
1.1 sec.

Slower shot in the R-Rated version.
+ 0.7 sec.

68:12 Same here.
2.3 sec.

Unrated:

The R-Rated version uses a shot of the harvester.
+ 2.3 sec.

R-Rated:

70:09 The following was completely left out: Candy uses the gasoline-driven keyhole saw to slaughter several aliens "Braindead style". Blood, guts and body parts fall to the ground. Candy gets blood splattered.
29.9 sec.

70:13 Shot of Candy wading body parts.
1.2 sec.

70:15 Same here.
0.3 sec.

70:15 She keeps getting blood splattered.
0.6 sec.

70:16 Ending and beginning of a shot of Candy getting splattered with blood and guts.
1.2 sec.

70:17 She keeps wading blood.
0.5 sec.

70:17 Further scenes of Candy sawing the alien.
1.8 sec.

70:19 Blood splattering in front of her feet.
0.8 sec.

76:28 After Gavin has gored the alien with the deer antler we see blood shooting out of the alien's back.
1.3 sec.

76:29 Shot of more blood shooting out of the alien's body after Gavin has pushed it against the antler on the wall.
0.8 sec.

76:30 We see Gavin a little longer and then the twitching and blood spitting alien, again.
2.7 sec.

77:04 The scene of Candy breaking off the alien's head and spine is much shorter.
3 sec.

77:09 When alien-Michelle piles the knife in Gavin's back the R-Rated version does not show the knife coming out of his stomach nor the blood splattering on the camera.
1.7 sec.

77:42 After the female alien has broken off Michelle's legs we see her sitting on the ground screaming cut to the alien with her legs in its hands.
6.4 sec.

77:48 Shot of Michelle's bloody face. She tears her eyes wide open.
2.8 sec.