"turning left" is not a whole mechanic, I'm sure you know that. "Movement" is. What this does is taking away a lot of the movement mechanic, but makes it actually central to the gameplay. It gets easy instantaneously (especially with the health system regen trick).
The art is very good looking! I hope you can make better games on a new 48h challenge!

Very creative game. I like the art, the animation is okay, and the sound affects are the nice touch. I think that the maps could be fleshed out, and more can be done to make the game cooler. An upgrade system would be cool. Good start.

I found this game frustrating. The control was difficult. I did not enjoy having to go into fullscreen. The sound effects grated on me after a short time.

Doesn't work because it requires WebAssembly to be enabled. At least provide non-obfuscated code using asm.js as a fallback!

Interesting, but a few things that make it broken.

Slamming into other ships is WAY better than shooting them. You always seem to even out and your other shot has a slight chance of snagging another kill, but ramming just works way better.

You can ram into the mother ships and just obliterate them as you're stuck. You can even spin with it, blast any enemies that come out, and heal 100% instantly.

Feels more enjoyable if you turned the ship into a battering ram and just tried to slam through as much as possible.