Pretty cute! All of the art is really fun and colorful, and all every defeat is animated. All the voicework is adorable too.
As far as the game goes, it does a lil Megaman thing where you can pick the stages, and get a boss weapon. Unfortunately the gameplay isn't too hot. The controls are kinda inconvenient, the platforming is pretty repetitive aside from the final level, none of the boss weapons are useful compared to just charging your blaster, and there are like 4 normal enemies.
I feel like if the sprites were just Megaman sized, the creator would have a lot more room to create interesting platforming. It would fix a lot of issues with the camera as well.
That all said, the story's cute, there's lots and lots of dialogue, the characters are all fun cute tropes, and there's a bunch of sexy cut-scenes to unlock.
There's a bunch of other side-scrollers on f95zone, but if walking sideways is your kink then you might like this. If not, well it's also pretty short - no sweat!