13 Satisfying 2d Animation Physic Music

⚠️ Photosensitivity warning: some simulations contain flashing lights and rapid colour changes. 13 colourful geometry simulations: triangles, squares, hexagons and circles. One rule each, and every collision plays a note (no music track). Two of them play famous classical songs… can you name them before the answer shows up? Stay for the last one: every shape that escapes brings 3 more, until the computer crashes. 00:00 A spinning triangle with a hole — every escape brings 2 more 00:49 One square, every bounce a note — guess the song 01:19 Can one ball shatter this whole WINDOW? — Every pane plays a NOTE 02:05 Two balls, one TRIANGLE — How fast does it become a CIRCLE? 02:50 Which colour takes the whole HIVE? — Three hexagons paint for 45 seconds 03:38 The octagon plays what? (it gets faster) 04:23 Every bounce doubles it — can a hexagon reach a quintillion? 05:12 Every TRIANGLE peg is a note — Where will 400 shapes land? 05:57 Every 4 seconds it gains a MIRROR — Three SHAPES, one kaleidoscope 06:44 Squares STOP where they land — How high can the TOWER get? 07:23 Every note removes a side — 48 sides to a triangle 07:59 1 square → 1,000 squares — and gravity FLIPS every 6 seconds 08:44 Every escaped shape brings 3 more (until it crashes) Which shape was your favourite: triangle, square, hexagon or circle? 🔺🟦⬡⚪