The gameplay is fun and varied, weapons sfx make them feel powerful, the setting is hilarious, the software itself is trash, the work overall shows extreme lack of polish.
If you dont mind you may get it and try to play it despite its bugs and issues. I dont recommend it at full price despite how cheap it is.
This game deserved better programming. Issues include very low-low fps, hiccups (garbage collector i guess), freezes (not at critical points though), some gameplay issues that can be forgiven but include checkpoints that respawn you at impossible positions, collision issues (hitbox and navigation), bad audio options (some sounds are not affected by volume controls for instance), some menu options dont save between sessions, they even get reset during execution, some cutscenes can't be skipped. Regarding obvious lack of polish, for example, one achievement requires beating a time limit displayed on screen, the time limit is wrong, wrong total count of level secrets (i.e. it says 2, it's actually 3), etc, There are even images that dont belong being displayed on top of the game scene and cutscenes, taking space and looking ugly in general (are the devs blind?).
Game difficulty is mixed, but easy overall. Plenty of hits just stun you, but the rest kill you in one hit, yet you have infinite continues and the game keeps checkpoints dynamically so you never have to replay more than a couple of seconds. This means most of the game is easy... yet in a few areas of the game you will have to complete the entire level in one go, just because (diabetes world, mole boss, aura of fire evil clone are some areas you will have to step up your game).