Raiden DX is an arcade shoot'em up game. The game's story revolves around the player controlling a jet fighter who blasts their way through various stages, which are divided into levels. The player must destroy buildings and enemies while navigating through these levels to progress.
The gameplay in Raiden DX involves collecting power-ups that grant better weapons, bombs, missiles, and bonus points. There are three stages: Practice, Novice, and Expert. Practice features a single level, while Novice and Expert stages feature multiple levels, including remixed versions of the previous stages. The player must defeat each level's boss at the end to progress.