(Copied from Saphroneth)

So, here's the full guide to the loops:

Nobody knows exactly how the Loops happen, at first.

They tend to involve a complete reset to the start of the "series" in question. Only Loopers keep their memories.

One Looper (in this case Rusty/Firepaw) is the "Anchor", which means the first one to loop. Others will eventually start to join him, and retain their memories.

The reset is not always perfect. Sometimes a loop's history will be different to the "prime" loop, or canonical plot. An example of this would be the 'Clans don't exist' loop.

"Crossover" or "Fusion" loops also occur, randomly. These can involve the home loopers having a guest, or the anchor for one universe spending time in another, or replacements (say, Spyro the Dragon replaces Spike?) or similar.

Vacation Loops are where the Anchor (or others) decide/s "buck it" and lets off steam by doing whatever comes to mind. There's little or no attempt to maintain the original timeline.

Loop duration is variable, and associated with the series in question. For a Harry Potter Loop, it'll reset around a month after the end of Seventh Year unless something else ends it. For a Naruto loop, it tends to be "until death".

Ranma Saotome, Lina Inverse, Shinji Ikari, Harry Potter and Naruto Uzumaki are the original five Loopers.

All Loopers are mind-bogglingly stir crazy.

1.1
Rusty woke up to a cacophany of clinks in his food bowl. Again. This was his... Fourth? Fith time waking up back in his Twoleg's nest. It was infuriating! If only time would keep going normaly... Rusty sighed, and padded outside. Smudge greeted him, but Rusty didn't feel much like talking, giving a noncomital grunt as response. Smudge went through his normal "Oh, the forest is horrible" speech, and Rusty ignored him, hopping down from the fence into the coarse grass on the other side. He felt a small pang of regret for that action. He padded into the forest, and waited for Greypaw to appear. Soon enough, Greypaw launched himself at Rusty, who promptly kicked him off. Greypaw's eyes gleamed in exitement, yet Rusty couldn't quite bring up any enthusiasm for the fight, having gone through it a number of times. The fight went like normal, a tie, with Greypaw accepting that Rusty was decent, for a kittypet. Rusty worked up a bit of exitement at the thought of seing his friends in the Clan, even if the didn't know him yet. Bluestar and Lionheart showed up as normal, praising his fighting skill, instead of his hunting. The rest of the half-moon went like normal. Maybe next time he would do something different.

1.2
Rusty ran through Shadowclan territory, trying to find their camp. He knew Brokenstar was the leader, but maybe he could do something to stop him. Rusty dashed around a tree, and bumped into... Clawface, he thought.
"What are you doing here, kittypet?" He snarled, unsheathing his claws. Rusty gulped, suddenly nervous. "Got cold feet, kitty?" Clawface laughed, leaping at Rusty. Rusty tried to kick him off, but Clawface stayed on, pummeling Rusty until his pelt was shredded. "Have fun in the woods, kittypet?" Rusty ran off, back to his twoleg nest. Smudge saw him, and gasped, panicking.
"Rusty! What happened? Did you find the forest cats? Are they who did this to you? Let's get you to your Twolegs." They padded slowly to Rusty's den, Smudge supporting him. When his Twolegs saw him, the gasped in horror, and promptly placed him in the vet-basket, presumably to get the vet to help him. This was not planned all that well...

1.3
Rusty woke up, and shook his pelt, glad to be whole and unharmed once again. He went outside, wanting to talk with Smudge. He hopped up on his fence, only to see an yellow and ginger cat, instead of his normal friend. "Hi! I'm Bloom." The she-cat introduced herself. "I'm assuming you're the Anchor?" Rusty tilted his head in confusion.
"What's an Anchor?" Rusty queried. Bloom blinked.
"Oh, I know what's going on. Are you repeating time?" Rusty nodded, hesitantly. "Alright, I'm going to have to give you the Multiverse talk, I guess." Bloom went on for a while about this giant tree, a Crash, Loopers and Anchors, and different types of 'Loops'. She also mentioned a 'Subspace Pocket', and Loop Memories. It was intresting, and it explained what was going on, thankfully. "That's that," Bloom said. "Any questions?" Rusty shook his head. He needed time to absorb this.

1.4
Firepaw woke up, ready to head into the woods. ...Wait. Firepaw laughed. He was in Thunderclan! This time around, he could avoid all the predudice against him. He checked his memories, and then gaped in shock. He was Tigerclaw's half-brother. That would be intresting. He then sneezed.

1.5
Rusty ran into the woods as fast as he could, and caught a mouse. He waited for Greypaw, but instead of Greypaw jumping at him, he hesitantly walked into the clearing. "Firepaw?" Greypaw asked quietly. Rusty's eyes widened.
"Greypaw!" He shouted. "You're looping!" Greypaw looked at him, seeming both confused and relieved. I'm so glad it's not just me anymore..." Rusty saw Greypaw's look, and promptly told him about the Loops, glad to have already met with Bloom so he was able to explain.
"This sounds impossible! How does this work?" Greypaw incredulously said.
"I don't know, we just accept it." Rusty laughed. "You won't be stuck alone here though. I'll always be around."

1.1 I didn't want to show Rusty's first loops, I wasn't sure how. Sapphy and Crossoverpairinglover didn't either, I think I'm safe.

1.2 Cat abuse, from the soon-to-be enemy of Rusty's.

1.3 Apple Bloom kinda confused Rusty.

1.4 This loop looked longer in my text document... Oh well.

1.5 One Looper alone can't cause a ton of interest, especially when they don't have any innate powers. I need to fix this.