Punching bag

Training is done at the punching bag. The official description sets the ceiling at Level 9999. Footage shows a bulk-training control, but its cash cost is not documented. The 2x Faster Training pass (200 Robux) makes every owned robot punch twice as fast. It does not raise the level cap or the cash paid by rounds. Part swaps can lower the level number you just trained.

On your plot.

Train between fights. After a major part swap, train again before you rely on an old round depth. One recording reached round 5 at level 1, round 44 at level 300, and round 67 at level 500. Those are one player's results, not requirements.