A really nice shooter. By the way, a REU version of the game would be superb, for the future. There are some C64-emulators in the meantime, that can emulate the use of SCPU and REU at the same time (for example Denise or VICE) and a single large .reu file of the game, could be loaded much faster and more conveniently, than several individual d81 disk-images.