Diamond

Diamond is 14th stage of the game. It has 2 pickups in 2nd stage. It's tempo is 132 BPM, and is 4/4. It has secret Achievement called "Hidden Gem".

1st Stage
1st stage is easy. Diamond on which we need to go through is shrinking, changing into a line. After 2 beats of spikes, diamond is growing again. Our goal is to get through it, so when it's touching our platform, wait 2 beats of spikes, then go 7 times to the right with rythm of the music. Wait again for 2 beats of spikes, and then again move 7 times to the right to the rythm.

Here's a chance to get achievement "Hidden Gem". When being in middle, go to the end of the line that's nearer to our camera. You'll get it this way.

2nd Stage
2nd stage is also easy, unless going for pickups, then it's slightly harder. Diamond this time is going up and down. When being in the highest or lowest spot, pickup appears. To finish this stage without pickups, wait until diamond touches your platform, and start going left 7 times. Wait 2 beats of spikes and move again 7 times to the left.

If you want to get it WITH all pickups, you need to go up/down while diamond is in block you're standing. After 2 beats of spikes, go up/down 7 times, wait 2 beats of spikes, and go in the same direction again. Congratulations! You got pickup! Now you need to go back on 1-block platform. Go opposite way you went before and get another pickup. End level normally.

3rd Stage
3rd stage is difficult if you don't understand the pattern. Diamond has 3 phases (1 repeats itself):normal, outline, inline. In this stage there's no spike beats. To beat it easily, get on the block when inline is active, move 2 times up/down, 2 times to the right, 2 times up/down etc.. When you pass the middle of it, go 2 times down/up, 2 times to the right, 2 times down/up... When you reach the ending platform, go to the exit block. Level Completed.

Trivia

 * Some people mistake "Diamond" with shape that is called the same name.
 * It's one of the few levels that cannot be recreated in editor, because it uses 32 beats, while editor allows you only for 16.