The level designs go from very big and empty to very small and full with enemy's and lack something to make them more interesting .
Beside the first level, mad house and spaceship most of the game is very forgettable.
They enemy's go from either very useless and just filler and some of them are very annoying and can ruin your fun
their design are lacking anything interesting and.
The weapons are not interesting and some of them feel horrible to use like the shotgun in my opinion.
The "parry" system fucking sucks and the melee attacks suck as well.
2 out of the 4 boss fights suck as well.
The only good bosses are the final 2 bosses .
Some mechanics are interesting but very underexplored like pissing and pissing is only use to open doors or activate something else and to give some status effects on the enemy's.
Either way its Postal brain damage is not a bad shooter is just a decent boomer shooter that lacks a lot of things