Hi there, it took me a while to get used to moving around slowly, and fighting the boss was unique as he shot out bullets we could destroy and thus had to shoot around them in order to damage him, alongside the the energy balls that turn into laser columns and his powerful laser beam, so great job on that :)
However, I could not access the Credits screen as clicking it would take me directly to the boss fight, unless that was the intention behind it.
It was a good game overall, and while the controls are only explained outside the game window, I look forward to playing more of your games in the future :)