A friend of mine said to me "you should just make your own game!" Now I'm kind of considering it.
Here's an idea I just had.
An iOS title that's
Fl0w +
Ikaruga (but not as hard) +
Bloom.
You control a ... thing ... like you do in fl0w, pushing a button on the screen to move to the right, and tilting the iPod/Phone/Pad to move up and down. You have to go through gates, and avoid obstacles. And you get weapons, should the obstacles become a little too hairy.
But, of course, it's a music game.
As you go through gates, the difficulty level increases (like, every 10 or so gates). Each new difficulty level introduces a new layer to the music.
Very Basic Example:
Difficulty Level 1: just drums
Difficulty Level 2: guitars fade in
Difficulty Level 3: some other instrument fades in
So you start out with just a bit of music, and you end up with a full piece of music.
The gates start out large, and get smaller. Depending on where you enter the gate (high or low) a tone will sound, either high or low in pitch. Maybe the pitches you end up with could be remembered, and come back every so often throughout the game, creating an overarching melody that gets logner and longer. I want an element of user-generated creativity in this game.
Getting near obstacles will fade a "danger" sound in and out, and this sound will mesh with the music of the level.
Getting hit could warp the music, make it more dissonant, until you stay away from obstacles for a while, entering enough gates. Continue to get hit, the music gets more and more dissonant, and then you die (?).
Weapons are also musical.
Bullet type: Pure sine tones, like in Bloom. Tap the screen. High or low on the screen = different pitches.
Bomb type: Big ass wagner orchestral bass drum sound.
Laser type: Fluttering strings.
Etc.
And maybe there could be a boss at the end of each level, with his own musical contribution.
So, has this been done to death? I don't really play many iOS games, so I'm not sure.
Also; don't steal this, or I will find you, and I will kill you.