Only on the second floor in level 2, i have speed problems on my Amiga-500 machines (and when this level repeats itself, later in the gameplay, of course), when my sprite is on a conveyor-belt. The rest of the game really works very well, on 7MHz OCS/ECS Amigas. About this floppy-motor thing. I will look on the disk, if this file is there. If this is the case, you mean, that this problem is gone? I also asked this motor-thing, because in the last years, I've encountered more than one time, a problem with various new demos or games for the Amiga that were released on the Pouet.net, where the programers forgot, to reset the _MTR-Signal in the CIA or something similar to this and then the software sometimes goes on loading on real floppy-drives or the drive-LED always stays on, even when the Amiga game or demo, is already fully loaded and running. Maybe this also is a consequence of programming in emulators, not sure?