JavaScript Tiny Platformer: Reach Every Coin Safely

Read the map before moving

The player begins on the lower-left floor. Use Left and Right to run and Space to jump. The camera does not follow the character because the complete map fits in the canvas, so platforms, vertical shafts, and coin positions remain visible as you plan. The gold blocks are the collectible targets; the gray blocks patrol their platforms.

Start with a short run in each direction and release the key to feel the horizontal friction. A jump is available while standing on a platform and reaches several tiles of height. Begin a jump near an edge when you need to clear a gap, then use the opposite direction in the air to line up the landing. Long, continuous holds can carry you past a safe platform.

1. Click the game canvas so it owns the keyboard.
2. Use a short Left or Right press to check the starting floor.
3. Press Space from a supported platform and watch the full jump arc before committing to a gap.

Climb in short, repeatable jumps

Use the colored platform bands as steps. Run along a floor until you reach a raised ledge, jump while moving toward it, and release the horizontal key once the landing is aligned. From a raised ledge, wait for a patrol to move away before attempting the next jump. The best route is usually a sequence of modest jumps rather than one long leap across empty space.

The map has lower, middle, and upper routes with coins in side recesses. When a coin is above a narrow opening, first land on the platform beside it, then make a standing or short running jump. If the character begins falling, keep the intended landing direction rather than holding a key at random; the platform collision will settle the character when the feet reach a solid tile.

Stomp patrols instead of walking into them

A gray patrol moves back and forth on its platform. Contact from the side sends the player back to the starting position and clears the current movement, but collected coins remain collected. Landing from above while falling defeats the patrol and increments the small gray counter drawn below the coin counter. Time a jump so the player's downward path crosses the monster's top half.

Wait on a safe platform and watch one patrol complete a pass. Start the jump as it approaches, then keep the player over its lane while descending. If the patrol is already beside you, do not try to squeeze through: step back, let it pass, and use a wider jump. The top routes contain several patrols, so clearing one at a time keeps the return path readable.

1. Watch a patrol's direction before leaving your platform.
2. Jump above its lane and keep moving over the monster while descending.
3. Confirm the gray counter increases before taking the next exposed route.

Use all coins as a personal finish line

There is no victory banner, exit tile, or campaign counter in this build. The most concrete map goal is eight coins: the coin HUD and the gold blocks provide feedback as each target is collected. In the completed exploration run, the player reached all eight coins and defeated five patrols. Treat that as a coverage milestone rather than an official game ending.

The upper-left coin is easiest after climbing the left side; the upper-right and central coins require crossing the raised middle and upper platforms. Lower recesses are safer when approached from a stable ledge instead of dropped into from above. The final screenshot shows the full coin count after the last upper-left collection.

Recover from mistakes and start fresh

A side collision with a patrol respawns the player at the lower-left starting point, resets movement speed, and keeps the coin count. Use the respawn as a recovery loop: check the remaining gold markers, revisit a known platform, and approach the next patrol with a better jump window. There is no life limit and no penalty to trying the same jump again after a collision.

Refreshing the page creates a fresh map state with zero collected coins and zero defeated patrols. The game does not save progress between visits. The final run verified both behaviors: all eight coins remained after a natural collision recovery, while a page refresh returned the HUD to a new starting state.