It's Suika Game with tentacle eggs/pregnancy.
The gameplay is probably the best part of the game. It is another Suika Game clone, but unlike all of the other ones, it's flipped so you're shooting the balls (eggs) up rather than dropping. The play area is also more curved rather than a straight rectangle which makes the game a lot more interesting than most Suika Game clones.
The issue is in it's lackluster sexual content. There is a girl on the side of the screen being fucked by tentacles, and the higher your score gets the more intense the fucking gets. Unfortunately, that's all. Just one girl. No customization. No extra positions. You can see all of the sexy stuff in less than 30 minutes.
While the game play is more fun than any other Suika Game I've played, the sex leaves me disappointed. It's fun for a single game, but after that there is nothing left to see, so unless you just really like the game play as while as tentacle pregnancy, there isn't any reason to play for more than half an hour .