Desktop versions (Win & Linux) of Space Raider are out! You can download them from yatchan.itch.io/space-raider In the footage, I'm playing starting from stage 100, with fully upgraded gun.
The web version is solid. Is it generating the layout randomly? Because I've come across multiple fuel pads in a row and I rarely see hull restorations. Also sometimes it spawns the fuel pads directly in line with one of the ships firing horizontal which destroys the pad as soon as they appear.
Yes, it's random, so some seeds may be more lucky than others. The powerup has 85% chance to be fuel and 15% to be repair station. Maybe it needs to be tweaked up a bit. The horizontal firing ships have a 25% of not firing, so again - it's bad luck. I guess I could make it so that enemies and powerups don't spawn in the same line, but again - seeing the player running out of fuel and having the pad destroyed right before his nose - priceless :) Happens in the original River Raid, too.