I don't know if it's a feature or a bug, but most of the spikes in the beginning we can just jump on them without dying.
I don't have much more to say as it's basically geometry dash with a minecraft theme. I understand it can be hard to find inspiration, but I think you could gain by trying a little bit to create something original. Even if you can't draw, I would've preferred an ugly square than a steve face! Keep trying!