No mention of this in the UK rule set at least: https://ukmars.org/contests/contest-rules/micromouse-classic/ https://ukmars.org/contests/contest-rules/micromo

No mention of this in the UK rule set at least: https://ukmars.org/contests/contest-rules/micromouse-classic/ https://ukmars.org/contests/contest-rules/micromouse-classic... And even if you're not pushing off from the walls, additional wheels on the sides of the mouse could help get more traction by running along the walls.