Pendulum — free browser game

Pendulum is a swing-pumping game: a bob hangs from a pivot at the top and starts swinging with a small amplitude on its own. Your job is to press at the right moment to pump it up and smash the colored bricks placed around its arc. The pumping rule is the same as on a playground swing: while the bob is moving left, press Left (or A) to add energy; while it is moving right, press Right (or D) to add energy. Pressing against the motion drains energy, which can be used as a deliberate brake. Bricks come in three tiers: white bricks shatter at any speed and give 1 point; yellow bricks require a moderate speed and give 3; red bricks only break near the bob's top speed and give 5. The colored ring around each brick is the minimum speed required; the gauge at the bottom shows the bob's current kinetic energy. Each broken brick respawns somewhere new after a short delay, so you must keep your energy up. If you overshoot you can brake by pressing against the motion. A round lasts 60 seconds; your highest score is saved locally. Tip: nail the first three or four pumps cleanly to build amplitude, then sweep through the high-arc red bricks one by one once you reach top speed.