Iron Kid

Iron Kid is a 2007 Game Boy Advance action platformer developed by Bitmage and published by Daewoo in South Korea, based on the Korean animated series. The protagonist Eon uses the Fist of Eon — an oversized mechanical arm that projects a 24-pixel forward hitbox larger than the visual model — allowing it to tag enemies just outside apparent striking range. The interface and dialogue are Korean-only with no international release.

The game has no mid-level checkpoints: contact with any hazard or enemy during a boss fight resets the full attempt from the stage beginning. Combat timing features a 3-frame asymmetric delay where attack inputs register differently depending on whether Eon is moving left or right — a quirk likely tied to the sprite mirroring implementation rather than intentional design. The screen runs at GBA’s native 3:2 aspect ratio.