The gameplay is too easy, even if you don't use the built-in 1 hit KO move that it forced upon you. Despite having a wide variety of monsters, since you only have 3 active monsters available at one time (with one slot locked to the starter monster, so really only 2) you'll never realistically use most of them; rendering the quantity of monsters a bit irrelevant. The reason of "more creatures to battle" would be the other side of this coin, but moves and battles are not balanced well so, as I'll explain, it ends up being an irrelevant point. You'll be sweeping opponents at all times if you battle opponents appropriate to your team's level and if you're h-scene collecting, you'll always be over-leveled regardless. Because you'll sweep almost every team, every battle will play out the same way so it doesn't matter what you fight. You shouldn't have to force a handicap upon yourself, but if you want to play this game like you would other monster catching games a self-handicap is required.
The hentai quantity is immense, it far exceeds what you'd expect for a game this length and every single girl is fuckable. My main issue with it is that it's a mile wide and an inch deep. Because of this, important characters don't have as many scenes as they probably should. A smaller issue but a lot of the scenes feel very much the same. Yes, it's a different girl but for most scenes I feel like I've already seen it.
The hentai quality is an acquired taste. The art is by pastime774 and is in his usual style, so if you know of him you'll know what to expect. For those who don't: lots of messy fluids and an obese, ugly bastard male protagonist. Personally, I'm not a fan of the unrealistic amount of sex fluids, it's just a bit too much. It also forces an internal view/x-ray view that overlaps over the female model. I believe this takes away from the overall scene and, since this game is censored, it forces a giant pixelated blob onto the middle of the good stuff. Something that involves the two previous points, but overall most scenes are too busy. There's too much going on. Everything is animated but it's not animated at a decent framerate. It's just too slow. If you hold the skip-text button then the animation moves at a correct fps but you miss out on reading the text. You shouldn't have to pick between one or the other. It does reuse character designs from this circle's previous games and the artist's previous works, which I have no issue with but it's worth mentioning. Something very important to note, but if you read the tags there is a scat tag. This content is completely cut off from the rest of the game, you will only ever see it if you actively seek it out in the post-game via the recollection room.
Speaking of the recollection room, it's fantastic. Every piece of content, from full scenes to CGs, is laid out before you. It's all easily accessed and with audio. For note: the true recollection room is unlocked in the post-game, I'm not talking about your sex pokedex.
The story is alright. At times it's a bit too "anime" and focuses on characters you have zero reason to give a shit about. There's a bit too much sex text that adds little to nothing to the scenes. At other times, it feels like a traditional Pokémon story that is better than anything Pokémon has shit out since Black/White 2; along with fun character moments and interactions as well.
Overall to me it's a 3/5, but if you dig this guy's way of drawing hentai it's a 4/5.