I have played RJ01464982. Game sucks.
The gameplay is fine I guess. The game is a flappy bird like, but objects bounce you off of them so hitting the back end of an object bounces you forward and is important to clearing the stages. The goal is to clear each stage under the time limit, and I'd say the difficulty was slightly above average. Of the 10 stages I cleared each stage on the first try other than 3-B (which took 6 or so tries) but they were all fairly close victories. Stage 5 definitely feels luck based considering there are huge areas of unavoidable objects, so you pretty much just have to hope you don't hit any big ones that slow you down too much.
The h was very disappointing. There's 5 sprite animations and 5 scenes with a CG. The CGs are mostly focused on the girl and you can barely even see the boy in some of them, which makes it feel less like the girl bullying a little boy and more like a solo picture. I like the sprite animations. But overall it's a pretty disappointing amount of content for the price. The girl is cute at least.
Overall I give it a 1/5 I regret purchasing this game.