This is probably not an Amiga game, given the developer and distributor names, but there seems to be precious little information about it on the web, so I'm leaving it in the Amiga section until told otherwise.

While the game is loading, press and hold 'Fire' until the title/option screen appears. You should see "CHEAT MODE #1 ACTIVATED" at the bottom of the screen . This gives you infinite time.

While the game is loading, press and hold 'F1' until the title/option screen appears. Now click on "INTRODUCTION" and then the "CREDITS" for the following cheat instructions:

To clear area in every level do this: Start from the top line, if there's a field, press the same-column-area of the lower line. Do this until you reach the bottom. Now go to the top line, doing the same with the upper area. Keep doing this up-to-down-to-up job to find yourself an easy way out.