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Play World Champ (Japan edition · Japanese) Online
グレートボクシング ラッシュ・アップ
Play Great Boxing: Rush Up online. Train your fighter, learn directional straights, hooks and uppercuts, and climb four Famicom boxing divisions.
Browser play
Nintendo Entertainment System (NES) / Famicom — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B | Z / X |
| START / SELECT | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play World Champ
Quick start
Choose RANKING, name your boxer, and begin in TRAINING. On the ranking screen, SELECT switches between TRAINING and RANKING, so practice and improve your stats before requesting an official bout. Build Speed, Stamina, Defense and Punch together instead of overinvesting in one category. In the ring, move into range and watch your facing: when square to the opponent, Up+A throws an uppercut, Down+A a body blow, and Left/Right+A a straight. Use B to defend rather than trading every punch. At the punch-allocation screen, move between punch types with Up/Down, add points with Right, remove them with Left, and press START to enter the bout.
Controls
D-pad: move around the ring. While facing the opponent head-on, Left/Right+A throws a straight, Down+A a body blow, and Up+A an uppercut. While facing at an angle, Left/Right+A throws a hook and Up/Down+A throws a straight. A: offense combined with a direction. B: defensive block or sway selected for the incoming attack. START: pause during a bout; begin the bout after punch allocation. SELECT on the Ranking screen: switch TRAINING/RANKING. Punch allocation: Up/Down selects a punch, Right adds points, and Left removes points. The checked manual does not support a complete direction+B table, so no unverified defensive combinations are claimed.
World Champ — About this game
Great Boxing: Rush Up is the 1990 Japanese Famicom release of the boxing game later published overseas as World Champ. Its Ranking mode alternates training with official fights: improve Speed, Stamina, Defense and Punch, then work from lightweight through heavyweight competition. Bouts are built around movement and facing. When squared up, directional A inputs produce straights, body blows and uppercuts; at an angle, the same system changes to hooks or straights. Successful offense and defense build the Spirit meter and create knockdown opportunities. A password preserves a developed boxer, while a simultaneous two-player versus mode and a separate elimination tournament for three to eight participants support local competition.
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 · nes
- 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.