It's always good to have an explainer of controls on your page so we know what to expect. With PC games they can be mouse or keyboard and many games have different keyboard layouts.
The choice of a shoot'em up was a good choice for a jam. However, because the power up effects seemed to be sort of random, some actually were bad for the player, and the icons were hard to tell what they were, it ended up not being my thing. There is something there with the idea of having to turn off your dopamine brain and double check what the power ups are before collecting, but not sure how fun that is in practice.