The challenge
Create a complete arcade loop around a single tap while keeping each climb readable, varied and tense.
The approach
Each tap reverses direction as Guppy climbs automatically. Six altitude zones introduce new conditions, while the rising water, collectible power-ups and separate height and score leaderboards create competing goals.
The outcome
A free, one-handed portrait game built for quick sessions, with Game Center support and runs that can be completed in around ninety seconds.