Portal Prelude Playthrough: Episode 2: Topsy Turvy
As Abby continues through the dangerous tests, she encounters localized gravitation fields and high-energy pellets before having to detour through a behind-the-scenes area. I've found myself frustrated dealing with the turrets in this mod, as they are programmed to see through portals and thus harder to avoid.
Portal: Prelude, as its name states it, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch, even before she was plugged in. At this time, test subjects were monitored by real Aperture Science employees whose work was tedious, lengthy and repetitive. This is why they decided to build a great artificial intelligence that could both replace them in these difficult tasks, but also take responsibility for many other tasks within the complex and compete with Black Mesa's superiority. All employees of the Aperture Science complex are now eagerly awaiting GlaDOS. Maybe even a little too eagerly, as the upcoming events will tell...
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At this time, asears16 has 1,881 views for Portal spread across 47 videos. His channel currently has around 15 hours worth of content for Portal, or 3.18% of the total watchable video on asears16's YouTube channel.