okay first attempt, nice music!

Did you write the music? It's actually pretty cool!

Nice implementation of the concept, however...

The BGM is awful!
The choice of music is okay, however the sound is distorted and listening becomes unbearable after a couple of minutes.
This is an easy thing to fix in a game, and i assure you - it will make your game much more playable!

Nicely done, but...

While its true that Contra is loveable and the music is timeless,
The soundboard concept is bordering on boring.
If you want to make your soundboard standout, think of adding some unique features...
Still, this gave me my 6 minutes worth of fun, so you get a bonus 6 points.

Final note: the huge filesize is unacceptable. the sound quality is already low (as it should be!!! yeah nintendo!!), so low bitrates would do no harm to the old-school feel.

almost as good as chuck norris!

in terms of stealth... :)
everything here is A-ok smoothness galore, but i would use a different EQ for the strings. in my opinion they need more high freq. i would also review the string envelope, the release is a bit early, like in old casicore synths...
Good job!

Pretty good!

Definitely sounds like dubstep, maybe even good oldschool (pre 2006 lol) dubstep.
the dark feel is perfect! the beat is fantastic and the drum sounds themselves are superb. the bass is distinct and even quite original, unlike many dubstep wannabes that rip the same bassline that everybody else does. The samples and their effects actually sound like a nostalgic psy trance hit. loved the horse :)!

Dis good.
Dr Bitz

Not bad!

This sounds great! loved the Japanese theme, though i would've liked more asian themes in your piece. I'm definitely going to look forward to your next release.