TL;DR of the article, generated automatically.

Free browser yokai defense game, built on Phaser 4, with a dev-useful build tip.

• Gameplay: eight waves, bolts fire automatically, tap to cast, Petal Burst clears crowds.
• Upgrades: spend coins between waves on lightning, fire, shields and crits.
• Build tip: game rules in plain TypeScript with no Phaser import, renderer lazy-loaded.
• Result: the team says mobile Lighthouse performance went from 70 to 99.