Jonny Builds: I Built a Secret Arcade in a Gym

Today, Im transforming our weird, unusable garage into the ultimate hidden room and a surprise dream home gym for Katie! We split the garage right down the middle, building a clean, modern gym on one side, and a fully immersive, retro '90s TV and arcade room on the other. But to get to the '90s room, Katie has to solve a 3-level puzzle door hidden inside a completely normal-looking garage cabinet. From custom woodworking and a DIY D&D gaming table, to a 3D-printed Super Mario vs. Bowser ceiling mosaic and a custom cat wall for Moose and Millie, this is one of our craziest builds yet. Massive thanks to Jeff and Parker for helping me pull off this epic secret man-cave turned family game room while Katie was out of town! Lets close the gap! order your Green Hinge System here: Subscribe for more epic custom builds: TOOLS & MATERIALS USED IN THIS BUILD: Green Hinge System: Arcade 1Up Ms. Pac-Man: Peel & Stick Checkered Flooring: RAMSET .22 Caliber Nailer: FOLLOW JONNY BUILDS: Instagram: TikTok: Facebook: CHAPTERS: 0:00 - The Secret '90s Room & Gym Plan 1:22 - Clearing the Garage & Framing Walls 3:40 - Classic '90s Wood Paneling & Checkered Floors 6:05 - Building the Hidden Cabinet Door 7:33 - Custom D&D Gaming Table Build 8:14 - The Super Mario Ceiling Mosaic Plan 10:18 - Designing the Secret Magnetic Lock 11:13 - Sneaking in the Arcade Machine 14:02 - Painting & Hanging the Puzzle Door 15:47 - Fixing the Garage Door Heat (Green Hinge) 16:13 - Hunting for Retro '90s Tech & Consoles 18:48 - DIY Super Mario Plywood Cat Wall 24:32 - Assembling the 3D-Printed Bowser Mosaic 26:38 - Final Touches & Secret Mini-Bar 27:38 - Katie's Home Gym Reveal! 28:12 - Solving the Puzzle Door 29:02 - The Ultimate '90s Room Reveal #SecretRoom #HiddenDoor #JonnyBuilds #GarageConversion #90sNostalgia #RetroGaming #Woodworking #DIYHomeImprovement #HomeGym #Maker #SuperMario #CustomBuild