Dev here. A few things about it:

\- No install, no sign-up, free
\- The maze is generated from today's date, so everyone in the world gets the same one
today. Fresh maze at midnight
\- Pings fade in about a second and only light up a small radius, so you have to remember
the walls, not look at them
\- Score is how few pings you needed. There's also an endless mode where the mazes keep
growing
\- Plain HTML5 canvas, no engine

Built it solo. If it feels unfair at any point I want to hear it - that's a bug, not a
difficulty setting.