Flying up a screen shooting at stuff -- it's been the backbone of games from the simple scrimmage of Galaga to the fantastic voyages through alien interiors in Layer Section. In Europe, these games are proudly filed under "shoot-em-ups," and the Shoot-'Em-Up Construction Kit was a popular tool for making your own.
SEUCK makes it easy to put tiles together into vertically-scrolling levels, as well as whipping up armadas of enemies that move in patterns of your choice. Besides spaceship games, you can also create running-man games like Commando.
There are limits to the utility, which doesn't allow your games to include power-ups. And oddly, the 16-bit versions lack some of the Commodore 64 version's features, such as a sound editor and options for terrain that blocks your movement. However, many wonderful graphics and sound samples (including the memorable "Okay, suckers!") are included. All around, a delightful package. ~ John Gorenfeld, All Game Guide