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Play Onegai Monsters (Japan edition) Online
Onegai Monsters
Play Onegai Monsters online. Raise a small slime into a growing monster, plan its meals and send it exploring for ingredients that shape its development.
Browser play
Nintendo 64 (N64) — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B | X / S |
| START | Enter |
| L / R | Q / E |
| Z | Tab |
| L-STICK ↑ / ↓ / ← / → | T / G / F / H |
| C ↑ / ↓ / ← / → | I / K / J / L |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Onegai Monsters
Quick start
Choose the single-player raising mode, pick the boy or girl and enter a name. After the opening walk and your monster's birth, talk to the family at home for some initial advice. Press A while walking to open the command menu. Inspect the monster, plan its food and advance one day to see the result before skipping longer periods.
Controls
In walking and menu screens, the stick, D-pad or C buttons move the character or cursor. A confirms, advances screens and opens the command menu while walking. B cancels, returns to a previous screen or opens the map as appropriate. START starts the game and offers a random name during naming.
Onegai Monsters — About this game
Choose a boy or girl breeder and begin caring for a newly born monster. Your early slime develops according to how you raise it, with food and elemental strengths influencing its changing form. Set up meals across a weekly schedule, check its condition and equipped moves, then send it on adventures to discover places with useful ingredients. Town shops supply basic foods, while exploring widens the choices for future growth. Calendar commands advance one day or longer stretches, returning control when something happens. The daily decisions build into a longer experiment in feeding, exploration and evolution.
Onegai Monsters 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 · n64
- 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.