Thanks ! I'm glad that you liked it despite the various issues XD
Yeah the bunching up of shots is probably related to the not well calibrated player speed, as for the aliens, they were supposed to be easier to kill after obtaining the upgraded shot but some weird bug i didn't catch makes that they take 4 shots to kill no matter what so that's why they ended up a bit tankier than i intended, plus they are a bit too fast probebly cause i didn't calibrate their speed well just like i did for the player ^^'
Thanks for playing and your detailed feedback :)