N with Donkey Kong Country 2 music.
Indie platformer (THE PRESSES HAVE BEEN HALTED) about passing over specific spots and adminstering parental-style broom violence to enemies (who are sometimes tiny animals, you prick.) No plot to follow. You have to 'SS' perfect each level to progress entirely, so you'll need more dedication than your megamans.

The thing I enjoyed the most, is due to the generally sharp mechancis, there can be room to do suave recoveries. Lower ranked ss replays on the (well-implemented) leaderboards have been more mind-boggling because of this.

However, there's many places that require pixel perfect actions (or some tricks, which are admittedly fun to figure out,) and the level designer has a habit of placing a clusterfuck of awkward near the end of a level. Slip up, and your forced to restart. I spent 5 hours on one.
But damn if that music doesn't keep you going.
-And then I got calluses from a vido game for the first time.

Basically, liked meat boy? Try this.

Like a bad remake to the perfect original movie.

The original game is free, smaller, and has a sharper (emphasis: much better; less disjointed all around) translation not littered with bad pop culture references. Takes a whole minute to get+patch. http://www.cavestory.org/ Wanna use a controller? Get XPadder.

Also, Nicalis (the publisher specifically for CS+) are rather shitty people. ( http://forums.steampowered.com/forums/showthread.php?t=2255512 )

Anyways, the game itself: Back in 2004, one guy released a freeware action-adventure-platformer (like metroid with megaman pacing/difficulty) that turned out to be fucking amazing in design, story, soundtrack, mechanics and everything else.

Additions in CS+ are stolen straight from fan mods (see above), or are the new art/music, which I feel lack the original, one-man's vision and charm. For example, new music has 1 too many instruments in many tracks.

Don't look up anything, it's better going in fresh. 7 hours~ long. Go!

To boil it down so it'll fit here: If you've indulged in a wide palette of RPGs, Skyrim's a long-lasting delight. If you've only wet your toes in the genre, this will likely blow you away and devour every bit of free time you have.

Some great strides from Oblivion: Quests and dungeon layouts are far more engaging and unique. Character creation/leveling is deeper while being, simply brilliant in its streamlining. And the main story and, in general, longer questlines are much less full of horseshit. Also, there's more books.

That said, it is not flawless. I'm not going to point them out, as that's not doing anyone any favors.
There is more to love here than before. If you stop to smell the mountain flower, immerse yourself, then the systems in place will see that you'll have laughs all over, and stories to tell. Taazokaan los morokei!