Glitches, Glory, and Sub-Hour Runs: Inside the Onimusha Speedrunning Scene

There's something deeply satisfying about watching a game you love get absolutely dismantled. Not out of disrespect — quite the opposite, actually. When a speedrunner shaves a minute off a world record in Onimusha: Warlords, it's a testament to how thoroughly a community has studied every corner of a game's architecture. In 2024, that community is alive, active, and still finding new ways to make Samanosuke Akechi move faster than any samurai has a right to.

The Onimusha speedrunning scene isn't the biggest in the world, but it's one of the most passionate. Runners gather on Speedrun.com, Discord servers, and Twitch streams to share new discoveries, debate routing decisions, and push completion times lower with every passing month. If you've never watched one of these runs, you're genuinely missing out on a fascinating second layer of the franchise.

The Engine Is Old — And That's Exactly the Point

Onimusha's games were built in the early 2000s, a golden era of PS2 game design when developers were still figuring out how 3D action engines worked. That era produced incredible games, but it also left behind a trail of mechanical quirks that modern runners have turned into a toolkit.

The fixed camera system, originally borrowed from Resident Evil's design philosophy, creates consistent geometry that runners can exploit with near-surgical precision. Because the camera doesn't move dynamically, certain room transitions behave predictably, allowing runners to manipulate loading zones and skip entire encounter sequences. What looks like a seamless action game to a casual player is, to a speedrunner, a map of opportunities.

Clip-through glitches near doorframes are among the most commonly used exploits in Warlords runs. By positioning Samanosuke at a specific angle during a transition and inputting a precise movement command, runners can occasionally push through geometry and bypass locked rooms entirely — rooms that normally require puzzle solutions or key items to open. It sounds simple, but executing it under run conditions takes hundreds of hours of practice.

Weapon Swaps and the Absorption Glitch

One of the more technically interesting exploits in the scene involves the Oni absorption mechanic itself — the core loop of collecting souls from defeated demons. Under normal gameplay, absorbing souls from enemies refills your Oni gauge and upgrades your weapons over time. Runners have found, however, that interrupting the absorption animation at specific frames with a weapon swap input can cause the game to miscalculate the state of your equipped weapon, occasionally triggering upgrade thresholds early or allowing the gauge to fill faster than intended.

This isn't a one-button trick. It requires precise timing, knowledge of which enemies produce which soul types, and a routing plan that deliberately engineers the right enemy encounters in the right order. Watching a top runner execute a clean absorption cancel chain is genuinely impressive — it looks almost like a rhythm game mechanic grafted onto a demon-slaying action title.

Category Breakdown: Any%, New Game Plus, and Beyond

Like most speedrunning communities, Onimusha runners compete across several distinct categories, each with its own routing philosophy.

Any% is the pure chaos category — anything goes, and the goal is simply reaching the credits as fast as possible. This is where the most aggressive glitch usage lives, and where sub-hour completions of Warlords have become the benchmark. Top runners in this category treat the game almost like a completely different experience from what most fans remember.

New Game Plus categories restrict runners to a cleaner route that still allows for optimized play without relying on early-game skips that only work on a fresh save file. These runs tend to showcase the game's combat more clearly, since runners arrive at encounters with upgraded gear and can burn through enemy health bars in seconds.

Glitchless categories are arguably the most underappreciated. These runs strip away the exploit toolkit and force runners to optimize every legitimate mechanic — movement speed, menu navigation, dialogue skip timing, and combat efficiency. A great glitchless run is a masterclass in how well-designed Onimusha's base mechanics actually are.

What Runners Say Makes Onimusha Special

We reached out to a few active community members to get their perspective on why Onimusha, specifically, keeps drawing runners back.

The consensus tends to center on two things: the game's compact structure and its mechanical consistency. Unlike open-world titles where routing variability becomes overwhelming, Onimusha's linear design creates a fixed sequence of decisions. Every run follows the same skeleton, which means improvements are measurable and meaningful. Shaving three seconds off a room transition feels significant because you know exactly where those three seconds came from.

Runners also frequently mention the satisfaction of the combat system's responsiveness. Even when you're moving as fast as possible and barely engaging with enemies as intended, the game's animations and hitboxes behave predictably. That consistency is what makes precise execution feel rewarding rather than arbitrary.

The 2024 Landscape

This year has seen renewed interest in the franchise, partly driven by ongoing nostalgia cycles and partly by the game's availability on modern platforms making it more accessible for new runners to pick up. The Warlords Any% leaderboard has seen several records fall in the past twelve months, with runners continuing to refine the early-game routing in ways that seemed exhausted years ago.

Onimusha 3: Demon Siege has also attracted increased attention, largely because its dual-protagonist structure creates unique routing puzzles. Switching between Samanosuke and Jacques Blanc introduces split-path optimization decisions that don't exist in the earlier entries, making it a more complex run with more room for creative routing.

If you've never dipped into the Onimusha speedrunning community, 2024 is a genuinely good time to start watching. Pull up a top-category run on Twitch or YouTube, and you'll see a game you thought you knew transformed into something almost unrecognizable — and somehow even more impressive for it.