The second in the Bionic Commando franchise (following the arcade title of the same name), this game sounds like the worst idea ever on paper: A platformer where the hero can't jump. However, once you actually play it, you'll find a game of considerable worth. Sure, you can't jump at the press of a button like in many NES games, but in exchange you get a cool extending grappling hook arm that enables you to grapple onto almost any ceiling, climb onto higher ledges, swing over spikes and obstacles, and even stun and knock back enemies. You'll often have to utilize this to circumvent large pits or spike traps, with well timed grab-and-swings being key to making it across. Some sections will even have enemies attacking as you do this, so every move you make has to be carefully planned and perfectly timed. Boss battles are no exception either, requiring you to quickly maneuver rooms and get shots in on the bosses' weak points with very small timing windows. A very tricky game for beginners, but also extremely fun and rewarding once you're accustomed to its mechanics.
An odd combination of gameplay styles that turned out to make for a pretty damn good game. Guardian Legend is more or less a combination of an overhead adventure game and a shoot-em-up with some light RPG elements on top. Roughly half of the game is spent exploring "the Labyrinth" in order to collect weapons and character upgrades, but also to unlock the numerous corridors. Entering the corridors changes the game to an overhead shooting perspective where you put your collected weapons and upgrades to good use fighting swarms of enemies, as well as the game's very challenging bosses. As per Compile standards, these sections are fast paced and intense, and the sheer variety of weapons at your disposal ensures that there's plenty of ways to approach any given battle.
21. Kirby's Adventure (HAL, 1993)
A followup to the Game Boy hit Kirby's Dream Land, its sequel was a huge step forward for the series, as it introduced Kirby's iconic power to swallow certain enemies and acquire entirely new sets of powers in doing so. There are a ton of them in the game, too - from turning into a wheel and running over enemies to swinging chains of sparks to spitting fire. It certainly added a lot more variety to the gameplay, as well as some clever stage designs and tons of new bosses to fight. A very fun game that also featured arguably the best graphics on the system. I mean, just look at that screenshot - it's good enough to be an early SNES game, and on a system that was eight years old at the time!
19. Batman (Sunsoft, 1989)
Another example of not only a great action game on the NES, but a great movie-based game as well. ...Well, okay, I don't remember the giant clawed mutants, the jetpack guy, the factory with massive exposed electrical conduits or the Joker being able to throw lightning from the movie, but you know what? it's still a damn fun game with great graphics, amazing music, spot-on controls and a lot of challenges to overcome. Not to mention some innovative mechanics - this is the first game I can think of that featured a wall jump, which added a unique twist to navigating the levels. It also strikes just the right balance of difficulty, being tough enough to keep you engaged but not so much that you quit in frustration. Definitely my favorite game from the Sunsoft camp.
18. Super Mario Bros. 2 (Nintendo, 1988)
As alluded to in my earlier mention of "SMB2j", there's a little bit of controversy surrounding this one. Nintendo decided the "real" SMB2 was too difficult and similar to the original and didn't want their audience to feel like they were being short-changed, so they took another game titled "Yume Kojo Doki Doki Panic" - an unrelated Arabian-themed platformer created for a Japanese festival - and retooled it into a Mario game. Confusing, to say the least. But hey, it's an excellent platformer with a lot of polish over its counterpart (adding more frames of animation to nearly everything and significantly upgraded mechanics) and introduced several new elements to the series, including vertical-scrolling levels (pretty innovative for 1988), picking up and throwing of items to defeat enemies, and even some clever stage design elements like sinking logs and riding enemy projectiles to faraway parts of the level in order to proceed. Clean, colorful, varied visuals were a pretty rare thing to behold in this era, too.
17. Zelda II: The Adventure of Link (Nintendo, 1988)
Probably the most controversial entry in the Zelda franchise (excluding the CDi games, of course), as it underwent a complete change in gameplay style from an overhead adventure game with an emphasis on puzzle solving to something more akin to a sidescrolling action-RPG. But you know what? That's no bad thing in my book. There's a lot of content here for a 1988 game, with a large secret-laden overworld to explore, numerous giant bosses to conquer and even six well designed dungeons to venture through. The sidescrolling perspective also makes for much more busy and intense combat - you'll be blocking spears and rocks with your shield and constantly ducking, jumping and slashing to evade attacks and sneak past an enemy's guard. Hell, even the new magic system adds a bold new dimension to the gameplay - careful magic management is key to not only navigating the numerous dungeon obstacles, but surviving fights against the big bosses at the end. Honestly, the only real fault I find with the game is the somewhat uneven difficulty - over the course of the game, you'll often go straight from a relatively easy dungeon to a hellishly tough one with no prior warning of that fact (most notable early on where you venture from a relatively simple swamp area to Death Mountain, a giant maze laden with much tougher enemies than you've seen so far). But hell, it's still a groundbreaking game with a unique mesh of gameplay styles for its time, and were it not for this game's success, we may never have seen classic games like Cave Story, Symphony of the Night or Dust: An Elysian Tail get made...
16. Bubble Bobble (Taito, 1988)
A close-to-picture-perfect port of a bizarre but undeniably addictive arcade game, Bubble Bobble stars two dinosaurs who blow bubbles to entrap enemies, then pop them and turn them into fruit, which can then be collected for bonus points. Popping more at once results in larger fruits that give more points. Yeah, it's weird. But hell, it's great fun, especially given the large number of powerup items the game provides - everything from upgrading your characters' attack range and movement speed to allowing you to spew fire to calling down lightning bolts to wipe out everything onscreen at once. I hope you've got a second player, too, because having two players alive and well at the end of the final fight is the only way to see the real ending. Honestly, this game's only weakness is the lone music track, which you're going to get pretty tired of after 112 stages...
15. Gun-Nac (Compile, 1991)
Another fantastic game that got widely overlooked since the SNES was the hottest thing on the scene at the time. Gun-Nac is essentially an upgraded Zanac with colorful high resolution graphics, fast paced gameplay and a ton of weapon variety, from flamethrowers to laser beams to homing missiles. Unusually for a western NES game, it was heavily steeped in the elements of its Japanese roots - characters and cutscenes retained their manga-esque style and bosses included things like a giant robotic rabbit that shoots homing missile carrots and even a maneki-neko. It's a little surreal to have a spaceship fighting a giant cat holding a gold coin, sure, but that's honestly one of the things I like about it - it's not afraid to be wacky. A formula Konami would also use to great success in their Parodius franchise (and to a lesser extent, Masuya and their Cho Aniki franchise...).
14. Metroid (Nintendo, 1987)
13. Mike Tyson's Punch-Out!! (Nintendo, 1987)
A game that was a damn impressive sight for 1987, with gigantic character sprites that featured fluid animation. The NES isn't normally capable of featuring such large sprites without massive flicker and slowdown, but Nintendo found a way - by adding a special chip in the cart called the MMC2 (Memory Management Controller 2) that allowed for much more graphical power. Oh, and the game's a lot of fun, of course. Essentially it's a a puzzle-based action game, wherein you must quickly block, duck and dodge your opponent's punches and time your counterattacks in order to land hits on them. Well-timed hits can also earn you stars (which enable a hard-hitting hook punch) or even knock the enemy down in one blow. All the while, you also have to be mindful of your heart counter - every time you take a hit or block an attack, your hearts will deplete, and when they're completely emptied, you become tired and cannot block or attack until you dodge several consecutive attacks to get your wind back. It's a test of lightning fast reflexes and pattern memorization, and defeating the game's final challenger (Iron Mike himself) will require you to be an ace at both!