Thanks for playing and for the criticism.
You may find this strange but the first thing I created was the music and I used it as an inspiration for the rest of the game, even the idea for the mechanic came this way.
The yellow power ups with the little bullets inside will increase the fire rate and the recharge rate, the player must find a tempo between fire press and release, but near the end of the stage before the boss I wanted to force the player to become small and to try to dodge the chaos. Probably I overdone it.
Thanks.