game design-wise, killing "the court" or the whole deck of cards is an interesting premise
but personally I'd say there's not enough variety or depth in the gameplay to fully carry that idea to the end, as halfway-ish trough the level it was feeling a bit on the long side.
and the ammo only being able to switch to the next type is a bit inconvenient when you need to quickly switch targets, this becomes especially inconvenient on bosses when you don't know what direction they will rotate, forcing you to suddenly find the next valid ammo type
on the presentation side however it is quite good!, the visuals are very competently made and the game looks very appealing, with all the animations giving the game some extra flare, the movement in the background providing some momentum & interest and all the music being very pleasant to listen to.
additionally some mentions for minor bug/polish related things:
-the lag spikes & the slightly awkward music transitions when the bosses spawn
-the music stops playing after a certain point with only the boss transitions playing
overall, while lacking mechanical depth, it's quite well made with very good presentation.