Obscure games that you play (played)

Surely you have a computer there (was) some little known but very good game.

Have you heard about the game Iji, exone two-dimensional shooter with a very naposim story?

Or about Advent Rising?

Or Super Mario Bros. X?

Or Bet on Soldier?

No? I'm not surprised. And the more it is the old game...
On NG you can find only two of them - and Advent Rising, Bet on Soldier. Yes, and even data about them a little.. Very little.
Personally, I had once these two wonderful igrulki, and now, think of them so far. Why don't you play? And they on Windows XP embedded was, and I now have Windows 8.

Now have Iji and SMBX.

In General, listed here is a rare game that you have (or had) on your computer and describe impressions from them (optional).