Jaleco's Ninja JaJaMaru-kun MSX Arrives on Switch
The recent release of Jaleco's MSX game collection on Nintendo Switch, featuring titles like Ninja JaJaMaru-kun MSX (1985), offers a valuable opportunity to experience these often-overlooked versions of classic Japanese action games. This collection, developed by Mobius in collaboration with the MSX Association, uses the official MSXPLAYer emulator, a detail that will resonate with those who appreciate accurate hardware emulation beyond simple ROM dumps. GameSpark reports on the enduring appeal of these titles, particularly the original Ninja JaJaMaru-kun.
This release, which occurred on June 30, 2025, also includes City Connection and Formation Z. The project benefits from the full cooperation of City Connection, the current rights holder for these Jaleco properties. The MSXPLAYer emulator, developed jointly by Mobius and the MSX Association, is officially licensed by MSX Licensing Corporation, ensuring a faithful recreation of the original experience.
Bringing MSX Classics to Modern Consoles
Ninja JaJaMaru-kun is a spin-off from the 1984 arcade title Ninja-kun: Majou no Bouken (Ninja-kun: Demon Castle Adventure), starring Ninja-kun's younger brother, JaJaMaru-kun. The game tasks JaJaMaru-kun with rescuing Sakura-hime (Princess Sakura) from the antagonist Namazu Dayū (Catfish King) by defeating various yokai. Its gameplay is deceptively simple, relying on jump and shuriken (throwing star) attacks to clear stages of enemies.
What this hints at, for the scene, is a growing recognition of the MSX platform's unique library. The real story here is not just the availability of these games, but the method of their preservation. The use of an official MSXPLAYer emulator, developed with the MSX Association, suggests a commitment to accuracy that goes beyond simple porting. This approach helps maintain the original feel, including graphical nuances like screen stutter and flicker, which the GameSpark article notes as part of its retro charm.
The Enduring Appeal of JaJaMaru-kun
The game's design allows JaJaMaru-kun to collide with enemies without immediate penalty, a mechanic that encourages strategic body blows to stun certain foes. Players must navigate four-tiered stages, breaking blocks to ascend or descend, often revealing power-ups. These items range from score-boosting koban (gold coins) to temporary invincibility, shuriken range enhancements, and even extra lives. Discovering a torokko (mine cart) allows for rapid enemy defeat, though Namazu Dayū sometimes places bombs.
A special Gama Packun (Frog Packun) mode can be triggered by collecting multiple power-ups. In this state, enemies freeze, and JaJaMaru-kun, riding a giant frog, can devour them for high scores and free movement across the stage. Despite a time limit that introduces hazards like Namazu Dayū's bombs and tracking fireballs, the game encourages exploration and strategic play to maximise points. The sound effects for collecting koban and bonus rewards are particularly satisfying, reinforcing the score-chasing loop.
A Legacy Continues
The Ninja JaJaMaru-kun series has a long history, with City Connection establishing an official X (formerly Twitter) account for JaJaMaru-kun as a flagship character. The series is set to continue with a new title, JaJaMaru no Hyakki Yagyō-den (JaJaMaru's Hundred Demons Night Parade), scheduled for release in 2026. This upcoming entry is described as a dungeon-based hack-and-slash action game, a departure from the original's platforming roots.
This Switch collection offers a distinct experience compared to the Famicom version or those available via Nintendo Switch Online. The MSX version's unique graphics and the option to adjust game speed from 0.5x to 4x provide new ways to engage with the classic. For those familiar with MSX doujin culture or the broader Japanese retro scene, this official release is a welcome addition, ensuring these historical titles remain accessible and accurately represented for new generations of players.
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Originally published by GameSpark. Read original article.
