Every sign has three words, one over each lane. Read a word and you ride into its lane. Hard words hide nitro, easy words hide traffic. Riders alongside carry a word: read it to hit them. Read right and your power shield charges: it blocks hits, and a full shield knocks attackers off their bikes.
Level
Laps
Riding as
Grab a dictionary for heavy hits or a coconut to throw at the rider ahead. Big hits with no shield knock you off the bike.