Keyboard: ↑ or W ride · ↓ or S brake · ← → steer · J hit · K boost (soma) · U your weapon · Esc pause.
Touch: your vahana runs by itself (turn this off in Settings). ◀ ▶ steer, HIT strikes whoever is alongside, BOOST burns soma, the purple button is your hero's weapon.
Hit riders beside you to knock them off. Carts, elephants and the roadside throw you if you hit them fast. Milk heals, soma fills your boost. Hits fill your weapon.