Donkey Kong Junior (US, bootleg)
ARCADE

Donkey Kong Junior (US, bootleg)

First released as an official Nintendo arcade title in 1982, Donkey Kong Junior is the beloved sequel to the groundbreaking 1981 Donkey Kong, flipping the original’s premise by casting Mario as the villain who has locked Donkey Kong in a cage. The Donkey Kong Junior (US, bootleg) version is an unauthorized, unlicensed arcade ROM variant that circulated widely in small U.S. arcades throughout the 1980s, when official Nintendo arcade cabinets were often too expensive for independent venue owners to purchase. Unlike heavily modified bootlegs that drastically alter gameplay, this US bootleg build stays almost identical to the official North American release, with only minor, often unnoticeable tweaks to boot screens, difficulty scaling, and sound mixing to avoid copyright detection. In the game, players control Donkey Kong Junior, a young gorilla, as he navigates four progressively challenging stages: the Wrecking Site, Vine Forest, Hideout, and Factory. Along the way, he must dodge snappi

No download required
Save states supported
Works on mobile & desktop

The emulator loads after you press Start Game.

How to Play Donkey Kong Junior (US, bootleg)

Move
WASD
ABAction
JK
XYShoulder
L;
STStart/Select
21

Save & Load States

  • F2Press F2 to save your current game state at any time.
  • F4Press F4 to load your last saved state.
  • F3Use F3 to switch between save slots.

Save states are stored locally in your browser. They persist across sessions but are cleared if you clear browser data.

Customize Controls

Click the gear icon on the emulator toolbar → "Controls" to remap keys.

Move
WASD
Action
JK|L;
System
2 Start1 Select
Save
F2SaveF4LoadF3Slot

Default layout for ARCADE. Remap in emulator settings.

About Donkey Kong Junior (US, bootleg)

Donkey Kong Junior (US, bootleg) is a classic ARCADE game you can play online for free in your browser. No download or installation is required — click "Play Now" to start instantly. Relive the experience of vintage console gaming with authentic gameplay, right in your browser on any device.

This title is part of the PLAYERETRO game collection, which features over 1000 classic titles across multiple systems. Use the keyboard controls shown above to move and interact. Save your progress with save states and enjoy Donkey Kong Junior (US, bootleg) anytime, anywhere.

Play Donkey Kong Junior (US, bootleg) online for free at PLAYERETRO. Experience the unauthorized 1982 Nintendo arcade variant, where you control DK Jr. to rescue his father Donkey Kong from villain Ma

Game Guide

Mastering Donkey Kong Junior (US, bootleg) starts with learning the core movement mechanics first: when climbing vines or chains, holding left and right to grab two parallel supports at once will let you climb twice as fast as holding onto a single line, a critical trick for outrunning fast-moving enemies in this slightly higher-difficulty bootleg build. For the first Wrecking Site stage, wait for Snapjaw traps to fully snap shut and start retracting before jumping over them—this bootleg’s faster enemy movement means jumping mid-snap will almost always result in a hit. On the second Vine Forest stage, avoid staying on a single vine for more than two seconds at a time: Nitpicker birds will drop fruit directly down the line you are holding, so switch between adjacent vines frequently to dodge falling projectiles, and jump to knock incoming fruit away for extra points if you have clear space around you. On the third Hideout stage, electric Sparks travel along chains in fixed, repeating patterns—pause for half a second at each chain intersection to track their path before switching lines, and never try to outrun a Spark on a single chain, as they move faster than DK Jr.’s single-line climb speed. For the final Factory stage, prioritize inserting all six keys into the top cage locks before chasing bonus points: Mario will throw projectiles more frequently as you get closer to freeing Donkey Kong, so complete each key insertion quickly, then jump to a lower safe platform immediately to avoid incoming attacks. As you loop through stages after your first clear, enemy speed and spawn rates increase further, so focus on survival over point chasing to set high scores.