If you're hunting for quick, browser-friendly action, Bike Racing 3 and Crazy Marker sit on opposite ends of the spectrum. One is a physics-heavy stunt biker sim where you actually care about traction and momentum; the other is a slapstick physics sandbox built around throwing objects at a marker. Both are free, but neither demands an install, and both rely on the same basic HTML5 canvas engine under the hood. ## Gameplay Mechanics
Bike Racing 3 throws you into a tight loop: pick a bike, hit a track, and chain together jumps and grinds. The core loop is simple, but the physics are unforgiving—your front wheel will slide if you hit the apex too fast, and you'll lose a few frames on every landing. There's no score multiplier beyond a raw time limit, but combos do unlock new bikes and tracks. You can replay a track with different bikes to see if a lighter model handles tighter corners better, but the game doesn't reward you for perfect runs beyond the raw time. Crazy Marker is a total different beast. You control a marker that moves by default, and you can throw any object in the game—balls, bananas, fire, bombs—by clicking, holding, and dragging. The marker's movement is purely momentum-based, and most interactions are about timing a throw so that the object lands on the marker before it passes out of bounds. There's no score, no combos, and no way to "beat" a level; the goal is just to make the marker move or die. It's a sandbox of cause-and-effect rather than a structured run. ## Graphics & Controls
Bike Racing 3 uses a low-poly, pseudo-3D rendering that feels like a late-2000s browser racer. The bikes are stylized, with simple textures and wireframe trails for jumps. Controls are keyboard-only: arrow keys or WASD for steering, space for braking, and a few keys for special actions like a turbo boost. There's no mouse interaction beyond the UI. Crazy Marker swaps that for a bright, cartoonish 2D sprite engine. Everything looks like a rough doodle on a white background. The marker is a simple shape, and thrown objects are just sprites that animate with basic particle effects when they explode. Controls are mouse-first: click-drag to aim and throw, and you can also use the keyboard to nudge the marker if you're not throwing anything. The visual polish is lower, but the input feels more immediate. ## Difficulty & Learning Curve
Bike Racing 3 has a modest learning curve. You learn the bike's weight class and how much speed you can carry before the front wheel starts to slip. It takes a few minutes of trial-and-error to figure out which bike handles a particular track best. There's no real "
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