Not really a new genre, pachinko games are a thing in japan, not really an international thing. Never heard plinko before this, and with little research, one could assume that people not able to pronunce Pachinko would go "Plinko".
Controls are ok, difficulty doesn't exist asside from the first level (and medium difficulty or more) unless you intentionnaly finish it early on. Quite enjoyable little game.
It's not finished however, guy say it's changing direction in terms of game design, going further into a RPG kind of thing in the future.
Basics operations are as follows:
Right click changes weapons (or becomes food), you can launch said weapon for the cost in mana indicated beside it by clicking in the green zone, if it lands in a yellow boxes in the bottom, you deal damage (or heal if you throwed food).
The more important thing in the game is the left pannel, in wich you can upgrade your capacity for health, mana, mana regen, healing and damage potential, as well as changing a white box into a yellow one (wich is permanent, so it's a no brainer, use it).
Tips:
In that last option lies the entire simplicity of this game. Develop all the capacity in the first level (heal you with chicken drum when weak), turn all boxes into yellow one, then swap for a cheap weapon (or semi cheap weapon on the third girl) and spam the fudge out of it, it will forcibly combo into one another, defeating the ennemy in a fraction of a second. Congrats, you won.
I guess with a map, items, different challenges, new ennemies, and more happy time content (Only three girls wich you can customise with part of the other, one position, no climax, and three different state of degradation of clothes in pictures aside from main event.) it could be something more interesting.
As it is, it's like a cool mini game that you could find on a erotic flash game site, wich is nice. I'm curious to see what the dev will make of it.