Creating an arcade game with true viral potential requires a deliberate fusion of addictive core mechanics, smart social architecture, and potent visual appeal. The most effective designs tap into fundamental human psychology, encouraging not just play, but sharing and competition. Firstly, the core loop must be instantly graspable yet offering near-infinite skill mastery. Think of the simple "flap" mechanic in *Flappy Bird* or the one-touch control in *Helix Jump*. This low barrier to entry ensures anyone can start immediately, while the high difficulty provides a compelling challenge. Secondly, integrate social features natively, not as an afterthought. This includes effortless social media sharing for high scores or achievements, synchronized leaderboards that foster friendly rivalry, and watch-and-learn replay systems that showcase gameplay moments. These features transform a solitary experience into a communal one. Furthermore, consider incorporating visual and auditory feedback that is satisfying and "juicy." Exaggerated particle effects, rewarding sound cues for actions, and vibrant, bold colors make the game feel alive and enjoyable to watch, even for non-players. Lastly, leverage the power of nostalgia with retro aesthetics or modernized takes on classic genres, but always with a unique twist that makes it feel fresh. By masterfully combining an addictive loop, seamless social integration, and intensely satisfying feedback, developers can craft arcade experiences that players are intrinsically motivated to spread, leading to organic, viral growth.