After an useful suggestion, I have added the original "Crazy Steam Bros 1" game, as a bonus for collectors.
You should find it in a folder of the local contents of the game. It's a Flash file, so you'll need a Flash player to run it.
Sadly, the original files are corrupted, so I can't compile a fresh new version.
This is the same game that you still can find in some Flash game sites, so it has two drawbacks:
First, it tries to load an ad, and then it throws an error as it want to send some data to a no longer existing web direction.
Both drawbacks are skippable, and once the main menu is started, you'll can play without problems.
Have fun!