Balance lab: underfoot (average bot)
2026-10-26 · rules version 39 · 200 seeds per arm · 28 s.
Each arm plays the same seeds as the baseline; its columns are the difference from the baseline, per run, with a 95% interval. ✱ marks a difference the interval says is real. Sorted by levels gained. The bots answer a gem by taking the first thing offered and never shop.
| Arm | Levels cleared | Won | Lives lost | Turns per level | Turns in danger | Stalled |
|---|---|---|---|---|---|---|
| baseline | 4.11 | 0% | 3.00 | 75.5 | 3.4% | 0% |
| underfoot (NES rule) | +0.62 ± 0.47 ✱ | 0 ± 0% | −0.02 ± 0.03 | +9.2 ± 5.1 ✱ | +9.3 ± 0.4 ✱ | 1% |
The baseline, level by level
| Level | Runs reaching it | Lives lost there | Turns there | Within par |
|---|---|---|---|---|
| 1 | 100% | 0.21 | 75 | 14% |
| 2 | 97% | 0.45 | 75 | 26% |
| 3 | 87% | 0.63 | 65 | 23% |
| 4 | 69% | 0.90 | 90 | 20% |
| 5 | 49% | 0.86 | 86 | 17% |
| 6 | 34% | 0.64 | 86 | 25% |
| 7 | 25% | 0.66 | 80 | 26% |
| 8 | 18% | 0.80 | 87 | 17% |
| 9 | 11% | 0.73 | 85 | 36% |
| 10 | 8% | 0.87 | 83 | 60% |
| 11 | 6% | 0.45 | 74 | 27% |
| 12 | 4% | 0.63 | 83 | 63% |
| 13 | 3% | 1.67 | 76 | 33% |
| 14 | 1% | 0.50 | 57 | 0% |
| 15 | 1% | 0.00 | 62 | 100% |
| 16 | 1% | 0.00 | 67 | 100% |
| 17 | 1% | 1.00 | 5 | 0% |
Lives lost in the baseline, by cause: blast 496, lingering 11, chain 16, walkedIntoEnemy 47, caughtByEnemy 24, spikes 1, spread 5.