Momodora sounds badass.

Interested in that console release.
Lots of good stuff there Sumez, a few quick observations off the top of my head:
Sumez wrote:Elevator Action Returns (everyone says this game is super easy, but it massacres me constantly - I think I might be overlooking an important game mechanic

)
It's the only arcade sidescroller I've ever felt necessary to play on max difficulty, for a little more intensity (basically enemies won't hesistate as long before shooting). However... I'm wondering if my character of choice, Edie, is the game's EZMODO pick (ala Kamaitachi in The Ninja Warriors Again). Her wide-ranging firebomb and blistering shot speed make holding off enemies all too easy, and since I don't get hit much as a result, her low HP is pretty moot. I could be totally mistaken though... haven't used Karte/Jad much at all (I tend to find a character/ship I like and stick with 'em). What about it gives you trouble, out of curiosity?
Super Contra (FC) (only major Contra game left for me)
This'll be a cinch with a little practice. Fun game (<3 UMECHAN Team), but not at all threatening.
Metal Storm (yes, I actually bought it :3)
Excellent choice. ;3 Expect a mildly tricky challenge from Loop 1, and a brutal trial from Loop 2. Fortunately the game's password system makes studiously overcoming the puzzlebox nightmare fun and practical!
Shatterhand
Natsume's technical sidescrolling masterpiece. The powerup and Option systems give it a decided learning curve, but it'll pay off handsomely. Super involving, satisfying stage designs to master.
Kick Master (why was this only released in US? One of the most impressive games for the NES, with possible Yagawa involvement :3)
So goddamn annoyed this never made it to FC, it's gonna make me break my vows and start a NES library for sure. Rad game AFAIK!
Batman (NES) (got to the Joker many times before, but I've never been able to get close to finishing him off, such a horrible boss fight)
I consider Joker part of a Famicom endboss trifecta of excellence along with Dracula and Jaquio (CV1/NG1). He seems insanely cheap at first... the trick is to exploit his inability to shoot you at point-blank, as well as the game's disabling of enemy hitboxes upon damage ; then it becomes a short, intense chase. Get close and punch the shit out of him - when he runs away he'll pass through you harmlessly. Pursue (without getting shot in the face... I like to jump) and repeat. The lightning will always follow an easy(ish) to dodge pattern while you're up close - see
my replay for more detail.
It's entirely possible to kill him without taking damage, but yeah, initially he's going to shoot you to bits. Now I find Fire Bug the bigger threat tbh. No-damaging him seems incredibly tough without resorting to outright AI looping. I'm still a bit of a newbie though.
Bucky O'hare
Little Samson (not sure if these last two veer too much into cutesy platformer territory to be considered sidescrolling action games? but especially Bucky does carry its Contra influences with pride)
Haha, don't worry about cuteness.

Bucky, Little Nemo and Gimmick have all been covered in this thread with much enthusiasm. I like what I've played of Samson/Lickle but it's one of those pricey games I'm not quite enticed enough by.
Conquest of the Crystal Palace (now here's a really overlooked gem for the NES! Interesting differences between NES and FC versions make both worth pursuing in their own way, but I went with NES so I wouldn't need a guide for the shops - not sure if it really fits with this thread's theme though)
I've been thinking of looking into its FC version Matendoji. Seems cool (I vaguely remember finishing it on rental, as a kid) but as always I'm slow to check out cutesier fighting man sidescrollers.
Target Earth (somehow Valken never really clicked with me, but I'm ready to give Leynos a chance)
Mechanically, TE/Leynos is very archaic and limited... many will find it painfully so. I put up with it for the game's one overwhelming strength, its battlefields. Moreso than any mecha sidescroller I've seen since, it truly makes you feel like a tiny lone unit trekking across vast, ruthlessly changeable battlegrounds. You'll soon know if you want to tolerate it similarly. One of my most idiosyncratic personal favourites, I'd never be without it but can't recommend it to anyone without qualification.
Holy Diver (I'm on the verge of giving up on this one - the later stages are just so cheap and cruel nothing short of pure memorization will get you through them, but the game is so much fun)
I can't help loving HD's reification of the nostalgists' NES boogeymen (noobs think NG and CV are cruel? lmao!). But the input glitches and sprite dropout are so fucking bush league it hurts... in the end, you'll be fighting those flaws as much as the game itself. I know I'd regret selling my copy though. 3;
Kenseiden
I love this one - the only Mark III title in my collection so far.
It has its flaws, but they're easy to forgive. Basically this is what Castlevania II should've been.
Kabuki Quantum Fighter
Gun-Dec
Mystic Defender
All super solid games. Gun-Dec is an absolute must-play for Ninja Gaiden fans, it's practically to them what NG is to Castlevania. If you like Mystic Defender/Kujaku Oh II, try out its spiritual sequel Jewel Master - very similar no-nonsense "turbocharged 8-bit" feel.
Dynamite Batman (I really don't like this game, but it's so pwetty)
It's just broken, imo - more of a tech demo than a quality sidescroller.
RAF World
Alisia Dragoon
El Viento
Unlike Dynamite Batman, these ones are flawed but still distinctly worthwhile imo. RW and AD's handling isn't as responsive as it should've been, leading to a few cheap hits... Viento flat-out gives you an enormous lifebar to tank through its cheesier bits. I think it would've been far cooler as a mecha sidescroller than a magical girl one...

Still quite satisfying though, the crouchdash and beefy charge shots are very fun mechanics and lend it a rollicking pace.
Alien Soldier
An utter blast, this one... possibly my single favourite MD game. Don't be intimidated by its reputation for difficulty, survival is actually quite lenient with a little practice (the performance ceiling OTOH is astronomical). I suggest using Buster/Buster/Lancer/Flame when starting out. Also, learn to work the weapon switch.
Ranger X (even more awkward controls, but for completely different reasons - I have NO IDEA how to play this game. It looks and sounds amazing though. Am I missing out?)
A definite learning curve on the controls, and stage 2 doesn't do the pacing any favours by dropping you into a rather confusing labyrinth - but yes, it pays off massively once you're over these initial hurdles. Utterly badass mecha sidescroller packed with variety and technical, rampant destruction.
I'm considering investing in Bloody Wolf (PCE), Chelnov (MD), and Edono Kiba (SFC) as well. Worth the money, or not?
Was messing about with BW just the other night - I love it. Weird sort of game, almost feels ARPG-ish with the mild exploration element... however, unlike say MSX Metal Gear the action is totally arcadey. Whole lotta killin' with plenty of trademark DECO 80s machismo.
Chelnov's MD port is spectacular. Justifiably acclaimed.