Why it is so hard
The brain loves simple mappings: see red, press red. Reverse makes you suppress that automatic response and choose the opposite one. Psychologists call this inhibitory control and study it with tasks like Go/No-Go and the stop-signal task. It is one of the executive functions — the ones that help us not to snap back, not to grab the phone out of habit and to finish what we start.
How the difficulty works
Round one gives you 900 ms, and each round after that is 20 ms shorter: 880, 860, 840… By round 31 the limit is down to 300 ms, and it keeps falling to 20 ms. Pressing faster doesn’t earn extra points — all that matters is staying within the limit without a mistake. So “press as fast as possible” doesn’t work here; you need calm accuracy.
| Round | Time limit |
|---|---|
| 1 | 900 ms |
| 11 | 700 ms |
| 21 | 500 ms |
| 26 | 400 ms |
| 31 | 300 ms |
| 36 | 200 ms |
Tips
- Rename the buttons in your head: not “red” and “green” but “not this one” and “not that one”. Some people find it helps to repeat the rule silently.
- Keep your thumbs over both buttons so you don’t lose time moving your hand.
- If you make mistakes in the early rounds, you are rushing. The limit there is generous.
Related tasks
The same conflict between an automatic and a correct response is used in the Stroop test. Formula F1 and Closer to Zero train the other side of self-control — not jumping too early.