Aim is to pass through stargates. Move with arrow keys. Move up towards stargate to enter it. You will teleport to new level.
There is also a stargate up from your location, but it is unpowered. If you get close to it, it will say "OFFLINE" and not teleport you anywhere. Move towards small ship to your left until you are on top of it. Press space. You will control your new ship, small Tugboat, which will change color to red. Fly with Tugboat towards blue sphere - it is a charge for the stargate. Get closer to it until Tugboat picks it up. Fly up towards the stargate. To the left of it there will be two vertical bars - power bank. Move towards power bank until Tugboat drops the charge into it and disappears - you are a free Spark again. Now move towards the stargate, it is working now.
This is it, unfortunately. I mismanaged my time and made only two very basic levels. But thanks for taking a look at it and sorry it isn't more.
I will update it to something more playable over next month or two.