1a. No Pain, No Gain - TV-PG-V (Original rating), TV-PG (Re-rating) - I gave it a TV-PG for someone's arms getting ripped off with some blood shown.
1b. Who Gives a Buck - TV-PG - Heffer getting a nosebleed doesn't get a V.
2a. Leap Frogs - TV-PG
2b. Bedfellows - TV-PG - For the nudist scene.
3a. Jetscream - TV-G
3b. Dirty Dog - TV-G
4a. Keeping up With the Bigheads - TV-Y7
4b. Skidmarks - TV-Y7
5a. Power Trip - TV-Y7 - People's arms getting ripped off by Really Really Big Man earns the rating.
5b. To Heck and Back - TV-PG
6a. The Good, The Bad, and The Wallaby - TV-Y7
6b. Trash-O-Madness - TV-Y7
7a. Spitballs - TV-Y7
7b. Popcorn Pandemonium - TV-Y7
8a. A Sucker for the Suck-O-Matic - TV-Y7 - The phrase "Oh my God" being said is okay with a TV-Y7, since it is said in some live-action Nickelodeon shows.
8b. Canned - TV-Y7
9a. Carnival Knowledge - TV-PG (Original rating), TV-Y7 (Re-rating) - Originally rated TV-PG for the word "hell" being shown on a sign, but since it's in a biblical way, it should be fine.
9b. Sand in your Naval - TV-PG
10a. Cabin Fever - TV-Y7
10b. Rinse and Spit - TV-Y7
11a. Rocko's Happy Sack - TV-G
11b. Flu-In-U-Enza - TV-Y7
12a. Who's for Dinner? - TV-Y7
12b. Love Spanked - TV-PG - For mild sexual references.
13a. Clean Lovin' - TV-PG - A heart being shown squirting out blood is okay without a V.
13b. Unbalanced Load - TV-Y7