3 Minutes to Escape gives you exactly one resource: time. A three-minute clock starts the moment the level does, and the level is a platforming route out — jumps, hazards and shortcuts that you have to read at speed because stopping to think costs the thing you can't get back.
It's a good pressure design: three minutes is long enough to reach the exit calmly if you know the route and far too short if you don't, which makes learning the level the entire game.
Three minutes per level, running from the moment it starts. It's enough time for a known route and not enough for an unknown one, which is the design.
Yes — restarting from a checkpoint eats the clock, so the safe route is often faster overall than a risky shortcut you fail twice.
Yes — a light 2D platformer with nothing to install.