This honestly feels like a harder version of MilkyHoneySoft's games, what with the enemies touching your line instantly killing you instead of having what looks like a bomb fuse go to you.
I honestly didn't get too much of a sense of personality out of most of the enemies besides Red Guy. Felt like in every level, it was Red Guy and then their cronies, since Red Guy actively chases you whenever you go outside of the line. Meanwhile, everybody else can be mostly ignored.
Maybe if there was an enemy that went in circles around the board and followed the lines you made, that could act as a decent miniboss.
Overall, I was surprised by the game's difficulty, but it felt great once I finally won. It would have been nice if the background girl didn't cover herself with her hands or if the menu actually showed that you beat the final level, what with how the purple circles still haven't filled up. But, at least there was some nudity through her bottom, so I still don't regret playing this.