Top 10 Most Amazingly Large Upgrades Between Certain Video Games and their Sequels/Remakes

Metroid 1: Samus painstakingly-slowly walks around incredibly bland and uninterestingly designed areas with blank backgrounds, killing monsters that could hardly be any less threatening from an aesthetic standpoint (and in many cases, also a gameplay standpoint, most notoriously with Ridley in particular) even if they tried; game also is way too short, has a horribly unbalanced difficulty level, requires the player to enter extremely specific rooms in order to swap beam upgrades, and features hands-down one of THE worst final bosses of all time
Metroid 2: Has mostly the same problems as the first game, only not quite as bad (however, a lot of the first game's charm is also largely lost on it); to its credit, though, its storyline IS a LOT darker than that of the first game if you take the time to actually read into its lore like you're supposed to
(Luckily, however, both of these games later ended up getting hands-down some of THE greatest remakes for any game ever made; Zero ...more

The weird and clunky tank controls of the original Super Smash Bros begone; while I still personally don't really find Melee to be all that great of a game overall when compared to its later sequels, you seriously CANNOT deny how much better it handles when compared to its original Nintendo 64 predecessor.

Also, there are now side specials, sidesteps, side aerials, wave dashes, air dodges, light blocks, Charged Smash Attacks, counter moves, secondary recovery moves, grapple recoveries, wall jumps, you name it

At least it's accurate to how difficult the sport would be in REAL LIFE

BL1: Running around an empty desert in search of treasure
BL2: Fighting your way through all SORTS of post-apocalyptic war-torn wasteland in order to stop a technologically hyper-advanced evil businessman with a horrifically Dark And Troubled Past from obtaining the treasure that HE is in search of and completely eradicating the Bandit and Rebel societies from Pandora in the process, all so that you can steal said treasure yourself

Seriously, nearly EVERYONE in the game is hilarious now
(with the only exceptions being Little Mac, Mr. Sandman and maybe Piston Hondo, while the best examples would have to be Von Kaiser, Bear Hugger, Doc Louis, and pretty much everyone in the World Circuit EXCEPT Mr. Sandman)

SC4 has a very diverse castle. I remember playing that one stage with the rotating rooms and the spinning tower that gives some people seizures.

No offense to Galaxy, but for its time, Sunshine was better-looking than it was (in addition to posing an actual challenge at more than a few measly times)

Duh, graphics always improves

Even though it ultimately just makes the game feel like a glorified Call Of Duty most of the time, this was DEFINITELY for the better as far as immersion is concerned; for example:

The sound effects (most notably for the crowbar) are actually realistic now
You actually CAN shoot enemies through fences, cages and the like now; also, headshots actually work the way that they're supposed to
The enemy AI is now incredibly smart and tactical, even though the enemies themselves are so ridiculously easy to kill that you almost never get to actually see this in action
The plot has actual involvement in the game rather than just being a lazy "excuse plot" like the one in the first Half-Life
The physics are actual physics now, giving birth to the absolutely astonishing work of weapon-design art that is the Gravity Gun (which presumably later inspired the Portal Gun in Portal as well)

It's easy to see why the original Street Fighter is often forgotten, and why Street Fighter 2 was the starting point for many. The original Street Fighter only had 2 playable characters (Ryu and Ken), and the special moves were harder to pull off. Compare that to Street Fighter 2 which had 8 characters, all with different stats and attributes, giving the game a lot more variety.