Agreed, pixel perfect sprite collision detection has limited applicability in games, like missiles vs ship in shmups. And even then, one would probably want to

Agreed, pixel perfect sprite collision detection has limited applicability in games, like missiles vs ship in shmups. And even then, one would probably want to implement a hitbox system smaller than the sprite images for fairness reasons. My pixel perfect collision detection is not just sprite-to-sprite, but also sprite-to-playfield. I also signal on overlapping sprite-to-sprite rectangles. Users can "turn off" the pixel-perfect collision detection to save on compute by resizing the sprite to anything other than 24x24 (even 24.1x24, which rounds down to 24x24 on the displayed sprite image.) I want pixel perfect collision-detection for authenticity and to provide an eclectic programming tool that creators may find clever uses for.