Makaimura on WonderSwan is a port of the popular action-platformer. The original game is known for its challenging gameplay and unique style.  The WonderSwan version likely retained the core gameplay of running, jumping, and fighting enemies.  (J) means a Japanese release, and [M] could signify different distribution channels or releases.  We need more research to know the developer and publisher.

Makaimura (J) [M]

Magical Drop (J) [M][!]