Download of U-Boot 1.2 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application was originally developed by Bootant LLC. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software lies within Games, more precisely Action.
From the developer:
U-Boot is a very enjoyable side-scrolling submarine game for your Mac. Navigate your submarine. Shoot torpedoes and mines. Avoid dangerous obstacles (mines, jellyfish, enemy submarines,...). Collect bonuses and power-ups (stars, shields, propellers, torpedoes,...). There are three game types and many levels. Enjoy the game!
You may want to check out more software for Mac, such as U-Boot - submarine game, which might be similar to U-Boot.