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Rainbow Islands - Putty's Party (J) [M]

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WonderSwan Platformer ROM Hack Japan 1 Player 5 (0) 31

Rainbow Islands - Putty's Party (J) [M]

What is Rainbow Islands - Putty's Party (J) [M]?

Compiled by Alfred J. Hall · Editorial standards · Published July 1, 2026

This is a WonderSwan port of the classic Taito arcade platformer Rainbow Islands, released in Japan. The "(J)" indicates a Japanese region release, and the "[M]" tag often denotes a modified ROM - meaning this specific file may be a hacked or altered version of the original game. While the official WonderSwan version was published by Bandai, details about the original developer and exact release year are not widely documented for this particular build.

The core gameplay revolves around climbing vertically through each stage by creating rainbow bridges. Your character can shoot rainbows to form platforms, defeat enemies, and collect items like gems and power-ups. The goal is to reach the top of the level while avoiding hazards and overcoming bosses. It retains the familiar Rainbow Islands formula but adapted for the WonderSwan's smaller screen and controls.

If you enjoy classic arcade platformers, this title is worth a look for its portable take on a beloved series. It is a niche entry in the WonderSwan library, so finding accurate information can be tricky. The version labeled "[M]" may include alterations or patches, so expect potential differences from the base game. Approach it as a curiosity rather than a definitive port.

How to Play Rainbow Islands - Putty's Party (J) [M] Online

Getting Started

When you start the game, you will likely see a Japanese title screen. Press Start (Enter) to proceed. The main menu is in Japanese, but the first option is typically "Start Game" or "1P Game". Use the D-Pad to navigate and the A button (X) to confirm. If you see a select screen for difficulty or characters, the default option is usually fine for beginners.

The core loop is straightforward: move left and right with the D-Pad, jump with A (X), and shoot rainbows with B (S). Your rainbow bridges can be used as platforms to climb higher. Collect gems and power-up items that appear. Defeat enemies by landing a rainbow on them or shooting them from a distance. Each stage ends when you reach the top and defeat the boss. If this is a modified ROM, some mechanics or layouts might differ from the original.

Because the menus are entirely in Japanese, it helps to know basic navigation: the confirm button (A) is always X on keyboard, cancel (B) is S. If you get stuck, pressing Select (V) may bring up a pause or options screen. The game does not have a save feature, so you will need to complete it in one session or use emulator save states.

Rainbow Islands - Putty's Party (J) [M] Keyboard Controls

Controls

Arrow Keys: D-Pad / Movement
X: A button
S: B button
Enter: Start
V: Sound

Frequently Asked Questions

Who developed Rainbow Islands - Putty's Party?

The original WonderSwan version was likely developed by Taito, but the specific developer for this port is not widely documented. The modified ROM file adds further uncertainty.

In what year was Rainbow Islands - Putty's Party originally released?

The exact original release year for the WonderSwan version is not clearly recorded in commonly available sources. It is generally believed to have come out around 2000, but this cannot be confirmed.

Can players save progress in Rainbow Islands - Putty's Party?

No, this game does not include a built-in save feature. Players must rely on emulator save states or complete the game in a single playthrough.