I think this game has a lot of potential as a puzzle game that everybody can relate to! I think it could be improved changing the perspective to maybe isometric, or anything that lets you see width, height, and depth simultaneously for each plug. With so many plug shapes out there, requirements for how many you can put on a strip, etc. you have a lot of room to create interesting puzzles. Plus a good way to add polish is having each plug have a visual or sound effect (the sound of plugging the phone, the glow of the TV starting, etc). Anyway, good proof of concept!