As players progress through Chapter 4 of Deltarune, they eventually discover a peculiar TV building in Castle Town. Within this building lies a locked area simply labeled “Mike’s Room.” Unlike many parts of the game that are unlocked through narrative progression, Mike’s Room presents a unique barrier, a keypad that demands a code. For those wondering how to unlock this door, solve its puzzles, and beat the boss fight inside, this guide explains everything you need to know.
Where to Find Mike’s Room
Mike’s Room is located in the newly accessible TV building in Castle Town, which becomes available after completing Chapter 4.
When you reload your save after beating the chapter, you’ll spawn in the Dark World with a path that takes you back to Castle Town. At this point, the door to Mike’s Room is interactable and asks for a four-digit code. You can also attempt to enter this door earlier in your playthrough, but you’ll need to know the correct code in advance.
Mike’s Room Code: What It Is and How It Works
The code to unlock Mike’s Room is 6453.
This number corresponds to the letters M-I-K-E on a traditional mobile keypad. Inputting 6453 opens the door.
- 6 maps to M
- 4 maps to I
- 5 maps to K
- 3 maps to E
The game does not provide direct instructions for this code, leading to widespread theories in the community. Some believe it’s hinted at through environmental clues or linked to prior phone-based puzzles like the parental lock system. While there’s no confirmed in-game breadcrumb trail yet, the community consensus is that the “MIKE” letter-to-number translation is an intentional design.
What Is Inside Mike’s Room?
Gaining entry is only the beginning, since Mike’s Room holds environmental puzzles, a mouse hand tool, and the path to a secret boss fight.
Here’s what to expect:
- Statue Puzzle with Cats: You’ll encounter a corridor blocked by cat statues. Some of these can be petted to disappear, but others are too tall to reach.
- Save the Maus: Near the start of the path, you’ll find a statue with a mouse at its feet. Petting this statue turns it into a large arm, referred to by players as the mouse hand.
- Mouse Hand Mechanic: The mouse hand lets you reach items that were previously out of range and pet the tall cat statue blocking your path further in, clearing the way forward.
- Rewards: You can find a collectible item called “TVDinner” behind the second tall cat statue, and decorative hats you can wear.
- Microphone Statue Mechanic: The final obstacle involves a large microphone statue. You can activate it in one of two ways, either by enabling your computer’s microphone and speaking into it, or by choosing one of the on-screen input options to simulate volume.
At the end of the path, you’ll find a crystal ball and a second door bearing Mike’s name. Opening it leads to a dark room where, after some dialog, Mike appears and starts a fight.
How to Beat Motormouth Mike
The boss fight has four distinct stages, and each one uses a different mechanic.
- Motormouth Mike Stage: This stage runs on volume. During the applause round, the volume bar rises to 100 and needs to stay there. When the volume drops to zero, staying quiet is required instead. When the bar sits at a normal level, dodge the microphones coming from above and below.
- Cat Mike Stage: Use the mouse hand from earlier to pet the cats appearing on screen. Petting them through this stage clears the way to Bigmouth Mike.
- Bigmouth Mike Stage: All three Mike variants appear and fight together here. Dodge the incoming cat paws, use the mouse hand to fill your basket with kittens, and guide the blue parent cat to the basket. Repeating this eventually merges Bigmouth Mike into Merged Mike.
- Merged Mike Stage: This is the final stage. Continue petting Merged Mike with the mouse hand until the fight ends, closing with most of the Mikes fleeing the scene.
A cutscene afterward reveals that none of the Mike variants fought in the battle were the real Mike. They were only watching over Mike’s Room, and the real Mike’s identity remains unknown.
Rewards for Beating Motormouth Mike
Beating the fight unlocks three minigames, playable by returning to Mike’s Room afterward.
- Pluey: Collect blue parent cats and bring them back to your basket while dodging large raindrops.
- Jongler: Use the mouse hand to throw cats into red target zones on screen.
- Battat: Hit cats with the mouse hand while moving across the right side of the screen, with bonus points for hitting green cats.
Mike’s Room stands out in Deltarune Chapter 4 as a cleverly hidden secret blending retro keypad logic, inventive puzzle mechanics, and a boss fight unlike anything else in the chapter. Whether you’re in it for the lore, the puzzle-solving, or the minigames waiting on the other side, entering 6453 and following the mouse hand through to Motormouth Mike is one of the most rewarding secrets in the game.
Read More:
- How to Get the Shadow Mantle and Beat Roaring Knight in Deltarune Chapter 3
- Anime Warriors 3 Tier List: Best Weapons, Accessories, Gamepasses, and Traits
- How to Get The World in Anime Warriors III: Abilities and Perks
- Assassin’s Creed Black Flag Resynced Harpooning Guide: How to Hunt Every Sea Creature
- Mini War Red Button Locations: All 5 Spots for Free Gems
- Splatoon Raiders: Everything Revealed About Gameplay, Co-op, and Customization
