Stay Inside Square 486

My very first DOS release for CGA-or-better PC compatibles.

This was written from scratch in one hour, for the 1-Hour-Game-Jam. Quite a challenge!

Goal: keep your moving cursor inside the shrinking square for as many generations as possible.

Controls:

• w: up
• a: left
• s: right
• z: down
• q: quit

Why not using the arrows? I didn't know how to do it back then. 

There were some effort to port it to *Real Mode*, but that was mostly dropped, with *Protected Mode* still being required.