Quack Shot - how to fight against time?

Hello, All Help, does anyone know if the authors thought about the speed of passing the level, was it commensurate with the time available? Already level D becomes impassable if no items/actions add to this time, and there are no hidden passages through the walls, then somewhere in the middle of the level it ends. At the same time not life is lost, only cartridges - which, of course, is not easier. It is understandable that they are fighting with cheats over time. I'm playing like this for now. Well, without cheating, Was it even possible to beat the game?

Hello TomCaT Link to the game

Hello Jerry Here [http://www.worldofspectrum.org/infoseek.cgi?regexp=^Quack%2dShot$&pub=^Sparkle rs$] page with films on WoS. And attachment: Z80 level D image made by after playing the TAP version. File: quack_D.zip http://zx.pk.ru/attachment.php?attachmentid=3446