cool game, the mechanics are nice and fun!
also loved the pixel art and the music, they feel coherent with the cenario. The ambient music really gives a countdown/urgency feeling.
i think there could be some better indication of the powerups/items . i got confused sometimes on where they were and i couldn't differentiate them just by looking as they are similar, so i had to stop moving the player and move the mouse to the tiny powerup box, which was a tid bit annoying.
overall pretty good tho!