Algodoo

Build some sort of flying machine that can navigate through the obstacles and simple puzzles of this zero-gravity course. It isn't easy - you'll need speed, power, maneuverability, and durability to get through in one piece. Two overlapping green circles mark places where you might want to save.

If you just want to get through, go ahead and do whatever you want, but to be eligible for the contest, it needs to comply to the following rules.
-No scene editing of any kind. If something's broken, tell me and I'll fix it myself.
- Must fit inside the inner perimeter of the red ring.
- May only use collision groups A through E. F and G are used for some of the course's machinery.
- No killers or immortal parts unless you need them for the propulsion and they do not touch the outside of the vehicle. If it destroys the course or survives a killer, it's disqualified.
- Must weigh less than 20kg.
- NO directional controllers at all.
- If you use a spawn rocket, it needs to clean up after itself. Containing it with a killer or using a destroy key on the fuel are good ideas.
- Very little if any non-colliding external machinery. A few odd small things sticking out are tolerable, but if a significant fraction of your vehicle's outline doesn't collide with anything, you need to rework it.

Edit: removed the impossible colors because although they're pretty they appear to mess up people's graphics processing. Also fixed a collision error that let the green balls into places they don't belong.