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Play Mr. Do! vs. Unicorns (Japan) (Japan edition · English) Online
Mr. Do! vs. Unicorns (Japan)
Play Mr. Do! vs. Unicorns (Japan) online. Hammer floor blocks to trap and crush monsters, then collect key-triggered letters for an extra life.
Browser play

Arcade — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| RetroPad A / B / X / Y | Z / X / A / S |
| L / R | Q / E |
| Insert coin | V |
| START | Enter |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Mr. Do! vs. Unicorns (Japan)
Quick start
- Learn a hammer strike beside a floor block.
- Trap a pursuer in a hole and drop a block onto it.
- Collect the three keys and reach the top-floor power.
- Defeat letter-bearing enemies to build EXTRA.
Controls
Move along platforms and ladders and use the hammer to break blocks. A dropped block can crush a trapped monster. During the temporary letter power, a direct hammer strike defeats the transformed enemy.
Mr. Do! vs. Unicorns (Japan) — About this game
Mr. Do’s Castle builds its chase around floors that can be broken with a hammer. A hole traps a pursuing monster, and dropping another block from above can crush it through the lower platforms. The three key blocks open access to a temporary power that turns the enemies into letter-bearing targets; collecting the letters spells EXTRA for another life. Monsters become faster if the board takes too long. Plan where a falling block will land before swinging, then leave a ladder available so the clown’s own holes do not cut off the escape.
Mr. Do! vs. Unicorns (Japan) Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · arcade
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.