This is a short platformer sync'd to music, where the environment moves to the beat.
Below, a picture of team member Crocodile playtesting level ideas and reporting bugs. They suggested the addition of lots of flashy rainbow-colored platforms (which were eventually cut from the final version).
I've just completed Sustain - what a neat little game!
The syncing of the music with how the environment moves, and with how the player has to move, is quite impressive: I get the feeling this is harder than it might seem to get right. The only thing that didn't feel quite synced was the music transitioning when passing between areas - maybe you could introduce a kind of holding area (like a lift in an FPS; I don't know what the actual term is) which keeps the player in place while the music changes so they can sync up?
I'm quite bad at this kind of game so I found things like the triangle jumping a bit difficult at first. The physics felt slightly different, like they'd been calibrated to make the jump puzzles work - is that true? If so, cool B-)
Also the graphics were simple, but nice and neat, and work well with the music. The intro was cool, too; I like the anticipation and the drop :D. I'm left wondering if I should play again with a subwoofer connected…
Overall, a nice and sharp, tidy game; good job!
Wow, this game is awesome! Love the changing soundtrack, simple controls, camera zooming in/out, it's all very very cool.
I wish I was better at platformers though, haha. I got stuck on the screen with the two rows of 4 diamonds that all rotate at once. I'll try again later to see if I have more luck.