Notcoin, a viral Web3 movement, gained massive traction without requiring wallets or complex onboarding.Notcoin became one of the most successful onboarding events in blockchain history, with 35 million users joining.The game's simplicity, addictive nature, and focus on competition contributed to its psychological growth engine.Notcoin's success showcased the importance of invisible crypto adoption, viral growth, and frictionless onboarding in Web3.