Brian Pasternack has many different tools that he can use to his advantage in the fight against corporate demons and infected co-workers. Considering that he can't use any kind of weaponry, though, it's important to know how to stay alive long enough to get to the next Photocopier and save your game.
First, you will want to interact with everything. Checking through every filing cabinet, drawer, and desk that you see could reward you with food items and other resources to fill your HP gauge and help make enemy battles easier.
You will also want to take advantage of items like Water Coolers so that you can make Coffee at any Coffee Machine you see. Each Water Cooler provides Brian with 3 cups of water, so you'll definitely want to stock up whenever you have the chance.
Also remember that since Brian only has the ability to sprint and interact with certain objects, make sure to run away from situations (really, just run). Sometimes, enemies will follow you based on different factors, but hiding under tables or in cabinets will be your saving grace as the story progresses.
Lastly, NPCs like Mappy and Doshi will sell items in their respective shops that can help you, including Pencils for disarming bombs and Batteries to power your Flashlight.
These are all of the essentials you need to stay alive in Yuppie Psycho.
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