Original X Collection as well as XLC allowed. Timing begins when selecting either Zero or X on X4 and ends on the final hit on Hell Sigma on X6. Games must be beaten in order. No FDS allowed.
Multigame run rules: https://megamanleaderboards.net/index.php?page=multigame
Any% (All Stages) rules: This category requires visiting all 8 maverick stages and defeating the 8 stage bosses on the Normal or higher difficulty before beating the game on all games.