Play the Super Mario Bros game online! You can select any level out of 32 or generate a random map.

Use W, A, S, D keys or arrows [↑ → ↓ ←] to move Mario, to jump higher hold the button.
Use Shift/CTRL to Fire/Sprint. P - pause, M - mute.

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Super Mario Bros – World 6-3

  • Level type: Treetop / athletic
  • Time limit: 300

Nothing in the game looks like 6-3: a treetop stage drawn in white and grey, with scales and small platforms over a long drop, and 300 seconds to cross it.

Scales again: sink, cross, jump before the rope gives out. The platforms are narrow and some of them move, so the level rewards short, precise hops rather than big running jumps. Red Koopas walk on the wider ledges and turn at the edges.

There are few coins and no bonus rooms, which makes this a level to clear rather than explore. The flagpole stands on a normal patch of ground after the last platform.