Ну запустил бы игру и посмотрел.

Код:
GAME ABOUT SQUARES (ZX version)

game idea, level design, texts*:
Andrey Shevchuk
(http://gameaboutsquares.com/)

graphics*, music, brainstorming:
mborik

font*: Proxima Software (Desktop)

code: ub880d

betatesters: mikezt, ikon, rombor

*small modifications by ub880d