flip-screen

listen to the pronunciation of flip-screen
Английский Язык - Английский Язык
Not scrolling, but composed of linked screens between which the player can move

So, your masterpiece is going to have to be either a straightforward (upward?) vertically scrolling blast (with a choice of fast or faster still but both supremely smooth), a single flip-screen affair or a 'push-scrolling' jobbie where the screen scrolls in accordance with the main sprite.