Jump arc & gravity · Super Mario Bros.
Super Mario Bros.: Jump gravity: weak rising, strong falling
Confidence: mediumdataminePending expert review
Clip coming soon
Values
| Value | Frames @60 | ms | Notes |
|---|---|---|---|
| Initial jump velocity | — | — | 0xFB (−5 px/frame whole-pixel part) for a normal jump. |
| Rising gravity (still/slow · full walk · full run) | — | — | 0x30 · 0x2D · 0x38, in sub-pixel units added per frame. |
| Falling gravity (still/slow · full walk · full run) | — | — | 0xA8 · 0x90 · 0xD0. Falling gravity is roughly 3.5x rising gravity when standing still. |
| Max fall speed | — | — | 0x05 px/frame. |
How this was measured
Community RAM map for the (JU) PRG0 ROM. Units are NES sub-pixel accumulators, not time. The game runs at ~60.1 Hz (NTSC).