I managed to expand the game, adding some complexity. I assume there's a fair level of challenge now.

A nice discovery in the Lazarus forum was the ability to shrink the size of the exe. In my case the installer went from 2 to 1 MB and the full exe from 12 to 5 MB (roughly).

The standard Lazarus compiler options gives quite large exes. Much larger than the old Delphi 3 did. Don't know about newer Delphi versions.

The latest version is available from:

http://jonax.se/beta%202/