The MSX version of Ultimate‘s classic isometric action adventure, Alien 8, is almost identical to the ZX Spectrum original – including slowdown caused by sound effects playing and lots of on-screen movement.
Another weird one: a conversion of a British game to the Japan-only Famicom Disk System…
Druid was originally created by Electralyte Software for Firebird Software on the Commodore 64, and was later converted to the FDS by Jaleco in 1988.
Now this is a weird one… Monty On The Run (aka Monty no Doki Doki Daidassou) is a bizarre Japanese conversion of a famous British platform game. It was released by Jaleco in 1987 and bears little resemblance to the classic original.
Knight Lore for the Famicom Disk System was developed by Tose Co. Ltd. for Jaleco with the blessing of its original creators, Rare. It was published only in Japan in 1986.
Argonaut Software‘s 1992 release (through Jaleco) – King Arthur’s World – is an interesting and challenging real time action game with strategic overtones.