I think alot of the Mutant centered episodes in Season 1 are VERY good. I don’t know why, but some of the best stories seemed to involve them.
Now “Jackalman’s Rebellion” and the hilarious episode “The Shifter” tend to come up alot it seems, and then of course people remember the Feliner Two Parter because of Ratar-O, but there are many other really good ones:
“The Mountain” is a great character driven episode as we see how the Thundercats & Mutants react in the same situation. Its honestly one of my personal favorites. Definitely in the top ten somewhere.
“The Fireballs of Plun-Darr” was a favorite of mine as a kid. Slithe was like a James Bond villain in that one…lol. It was just a really fun & basic story with a unique quality to it.
“Return to Thundera” was great because of us getting to see more of Thundera & Lion-O’s backstory, but I remember this episode as one where The Mutants really thrashed the T-Cats good with The Plundarian Warbot.
“Sixth Sense” is also a great one for several reasons. Cheetara is the star obviously, and the little tease of a romance between her & Lion-O made it memorable. But as far as The Mutants go, this is probably Monkian’s best episode and Vultureman’s break out story.
“The Spaceship Beneath the Sands” is a great one because they actually acknowledge that The Mutants just flat out sucked against the T-Cats. And them getting their weapons back evened things out.
“The Transfer” was awesome because you really see that the main advantage the T-Cats have (besides that friggin Sword of course) is that they can work together & The Mutants & Mumm-Ra can’t. That big battle ontop of the Pyramid was pretty cool too.
Now stepping out of The Mutant centered shows:
“Tower of Traps” is a great one for reasons already stated.
“Mandora: Evil Chaser” I really enjoyed. Say what you will about Overgard, but the man contributed ALOT, including two of the Thundercats most interesting and capable allies, Hachiman & of course Mandora.
“Mongor” was basically the same episode format of “Safari Joe”, and if I had to pick a superior episode, it’d be the later, but I thought Mongor was a pretty cool villain.
“Excalibur” was another one I loved. I don’t know how fans feel about it, but I think matching Lion-O up against King Arthur is really cool…and hey Mumm-Ra basically wins in this one, or at least as close to a victory as you’re going to get.
“Spitting Image” was fantastic. I loved Mumm-Ra’s little Dr. Frakenstein laboratory (I am stunned that they resisted the urge for Mumm-Ra to yell ITS ALIVE!!!) and a Panthro centered story was cool for me because he was my favorite.
Overall, I do prefer Season 1 over Season 2 quite a bit. But there were some really good gems in Season 2 that get overlooked. Some of the very early Lunatak episodes were great like “Catfight” & “Psych Out”. I thought “Bracelet of Power” was hilarious and ranks right up there with “The Shifter” as one of the funniest episodes. And “Thunderscope” was memorable because Mumm-Ra actually KILLS Lion-O…or at least he would have if Jaga didn’t cheat (you know what, between the Sword & having a ghost bringing them back to life whenever they die, I’d say the T-Cats are the biggest cheaters ever, lol!) And speaking of Jaga, how cool was it to see him kick some butt in “Malcar” We get to see Jaga show Mumm-Ra who is boss. And even though I feel “The Last Day” should have been the finale, I thought “Book of Omens” was a pretty epic conclusion to the show.