Hey Sushi, for some reason there is an interact glitch in the game where sometimes E is stuck on a single object or doesn't work anything. This has broken the game for me several times!
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Hi, unfortunately this is a known glitch that happens when you place turrets too close to each other or the shop. There are currently plans to polish up this title and expand upon it, but no current plans to update the jam version. The current version is... very far ahead of the jam version but simultaneously incomplete. Hopefully even with the glitch you were able to enjoy your time with it!