These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Choujuu Sentai Liveman
Alas, Poor Villain: This happens to EVERY Volt member except Gou/Oblar, who survived. Unusually for a Sentai series, none of them are directly killed by Liveman, who grasp at every chance to save them (Guildos, who died before they could really do anything about it, and Bias excepted).
Anvilicious: Japanese universities tend to have high entrance standards compared to Western ones, and it's still not uncommon to find students struggling to get in. Knowing this makes the "getting a good score above all" thrust of the overly Elitist Volt hit a bit closer to home...
Crowning Music of Awesome: "Taiketsu! Zunojuu" ("Duel! Brain Beast") is the quintessential 80's Sentai "Duel" theme. Strings and brass for the win.
The themes for the Bimotion Buster and Live Robo's Super Live Crash both have an assurance of victory about them. (In fact, if you've ever heard Bimotion Buster before, you're humming it now - you're welcome.)
The Mecha themes that start getting used after Live Boxer is introduced, and especially "Live Boxer's Song".
Ensemble Darkhorse: Despite the sea of red warriors in the franchise, Yuusuke/Red Falcon is still a fan favorite.
Moral Event Horizon: Bias is cold and egotistically heartless for the entire series, but there's just no coming back after it's revealed he gave Butchy memories of a happy life on Planet Chibuchi, only to tell him he's a robot, and those were programmed.
Never Live It Down: Megumi only cries once or twice in the first few episodes, which somehow translates into her sobbing almost every episode.
Junichi's Mr. Seahorse moment almost always gets mentioned in any discussion of the series.
So does Jou unfortunate moment with that dinossaur.
Nightmare Fuel: Dr. Obler before turning full-on monster. That mouth... *shudder*
Kemp's transformations. Kemp-zunoespecially - imagine a Xenomorph with spikes.
Nightmare Retardant: Except for Bijuu Kemp, who looks completely ridiculous for a Sentai monster.
Tear Jerker: Quite a few, given the dark nature of the last quarter of the show.
Arashi, after being 'dropped' by Bias, finally asks Omura what 8+4 is, a problem that's vexed him since his introduction. Upon getting the answer he notes that there's nothing left for him to do, remarks that it was a strange life, then straps on some dynamite and suicide tackles the as-yet unbeatable Brain Beast of the week.