Lizzy

Can I make a game using only one button?

Prove that a single input can carry a full 30-second play loop with escalating difficulty.

• Sketch the core loop
• Build a paper prototype
• Tune jump timing
• Playtest with 5 visitors
• Write up what worked

Spending limit for this experiment: $120

Day 3 — cut the double-jump. One button, one job. The game got harder to design and easier to play. Good trade.