In Happy Wheels, the internal physics engine runs at a fixed 30 ticks per second, regardless of whether you play in the browser or the 60 FPS Steam release (TotalJerkface Official Site). Wheelchair Guy has the highest unassisted horizontal thrust at 42 m/s² via dual rocket boosters, allowing him to clear gaps up to 140 level editor units at a 35° incline. In contrast, Segway Guy has the highest instant vertical impulse (jumping up to 28 units high). For level creators, rotating motor hazards have a linear tip velocity of v = (RPM × 2π × radius) / 60; exceeding 65 units/sec causes instant ragdoll dismemberment upon contact. Use the calculator below to model exact jump distances and hazard speeds.
Level Editor Joint & Motor Physics Planner
Design robust revolute motors, prismatic pistons, and distance springs without causing physics tunneling or game crashes.
Happy Wheels Character Physics & Mass Matrix
Baseline physical constants, thruster forces, and ragdoll mass properties from the official physics simulation:
| Character & Vehicle | Total Mass (kg) | Thruster / Jump Power | Max Flat Velocity | Joint Break Threshold | Best Level Type |
|---|---|---|---|---|---|
| Wheelchair Guy | 95 kg | 42 m/s² (Dual Rockets) | 38 units/s | Low (Fragile spine) | Long Jump / Rocket Coasters |
| Segway Guy | 82 kg | 18 m/s² (Spring Jump) | 24 units/s | Moderate | Obstacle Courses / Precision |
| Irresponsible Dad | 145 kg (Tandem) | None (Pedal Only) | 29 units/s | High Inertia | Downhill Speedruns |
| Pogo Stick Guy | 78 kg | 32 m/s² (Compression) | 21 units/s | High Bounce Tolerance | Vertical Towers / Pogo Puzzles |
| Moped Couple | 170 kg | 12 m/s² (Speed Boost) | 35 units/s | High Passenger Fragility | Loop-the-Loop Tracks |
Level Editor Kinematics: Calibrating Motors & Triggers
Tip Velocity = (RPM × 2π × Radius) / 60
When constructing rotating blades or sawmills, setting the motor RPM too high causes rotating shapes to skip collision detection ticks at 30 Hz. Keep arm radius under 15 units if running above 60 RPM to prevent ragdoll phasing.
1 Second = 30 Physics Ticks (33.33ms per step)
Even in the modernized 60 FPS client, ragdoll joints, thruster forces, and trigger zones evaluate at 30 Hz. When scripting falling hazards, always round trigger delay times to multiples of 0.033 seconds to ensure consistent results across different hardware.
Gladio Mori Moveset Calculator
Physics moveset, 60 FPS frame & organ damage calculator
Frequently Asked Questions
How does the 60 FPS update affect physics?
As confirmed by creator Jim Bonacci, the Steam update uses graphical interpolation to render at 60 FPS, while the core Box2D physics simulation strictly remains at 30 FPS to ensure all classic user-created levels behave identically.
What is the optimal angle for maximum jump distance?
Because rocket boosters provide continuous forward acceleration in the air, the optimal ramp angle in Happy Wheels is between 30° and 35°, rather than the textbook 45° used for unpowered ballistic arcs.
Why do vehicles randomly break or explode on landings?
Ragdoll joint pins break when impact momentum exceeds the joint's break-point threshold. Landing with wheels aligned parallel to the ground surface distributes the force across multiple springs, preventing instant bone breakage.
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