For anyone else wondering, the art was made in MS Paint, the game itself was not made in MS Paint. I thought it would be like one of those Turing-complete Excel spreadsheets.
<p><pre><code> uMatrix has prevented the following page from loading:
https://guce.advertising.com/collectIdentifiers...
</code></pre>
And there seems to be no easy way to visit the original link regardless. I'm not sure I like this behavior of uMatrix...