Ohhh I see it now. Yeah, there is no way I would have figured out I had to hit both keys at the same time. I think the purple arrow on the purple background also is making it hard to see what you are doing. I think simplifying the controls would be the best option and maybe changing the colors to contrast better. Maybe hold down the right mouse to rotate left to propel forward or something like that. Make it as simple and easy to use as possible.
Yep, controls are definitely a bit too complex. Maybe if we introduced them one after the other it would be easier? (We would like to keep all of them to allow for more complex patterns down the line, but for this jam it was probably too ambitious). And yes, purple on purple was a very bad choice :P
Thanks for giving it another go!