Thanks for all the positive comments! I was honestly expecting a more negative response.
@Blipkid: thanks! I was going for a rock feel, I suppose. I really love gritty sounds (i.e. distorted guitars, etc.) and I decided to use the MMC5 module for its extra pulse channels: they have some dirtiness to them in the lower registers. Perfect for power chords, imo. Also, I understand what you mean about the glissando. I kind of overdid it, I guess XD. I'll try toning it down. However, I personally think the intro fits well, so I'll be keeping it. You did get me thinking though... all the interesting things I could do for a new intro. Again, thank you so much!
@urbster1: thanks a lot! \( * 3 *)/ Now that you mention it, the instrumentation and dynamics are a bit stationary. In fact, I think that is what was bothering me when I was writing the song: variety in instrumentation and dynamics! I'll keep it in mind for sure.
I really just wrote it without an intention to be honest, other than writing something that I like (and maybe writing something that has an energetic, almost Mega Man-ish intro). Though I do mostly see it as a stand-alone song. When it comes to whether I should extend the song or not... I honestly have no idea. I mean, I'm fond of short, punchy songs... but the song really could be interesting and special if I just decide to expand on it a bit, build into new sections more smoothly, etc.
You guys have given me such great advice. It is much appreciated.