Aha - with your tips I was able to make it past the first few jumps on Desktop. I'd suggest that you only require one mechanic at a time for your first few obstacles / challenges for a smoother difficulty ramp. For example:
- Hover-Only obstacle
- Shoot-Only obstacle
- Hover-and-Shoot obstacle
- Charged Blast obstacle
- Charged Blast and Shoot obstacle
- Charged Blast and Hover obstacle
I think the Charged Blast & Hover is the hardest mechanic as it requires tricky aiming, switching and timing so your players will get further and have more fun if they work up to it.
It could also be helpful to have some sort of UI element to show which mode you're in, it's easy to lose track right now.