To finish Level 21 in the game of Isoball 3, build a ramp down from the left corner to the front corner with a gap over the hole. Build a small ramp over the missing right corner. Place the arrows to direct the ball into the hole.
- Place the full cubes
You begin the level with four full cubes, one half cube, three arrows, two steep ramps, four shallow ramps and two bridges. Place two full cubes on the first square in front of the ball. Place one full cube on the next square. Place one full cube on the square after the square with the hole.
- Place the half cube
Place the half cube on top of the full cube that is on the second square from the ball.
- Place the steep ramps
Place one steep ramp on top of the stack on the first square in front of the ball. Place the second steep ramp on the square between the front corner and the full cube.
- Place the shallow ramps
Place one shallow ramp on top of the half cube near the left corner. Place one shallow ramp on the single full cube on the square on the other side of the hole. Place a shallow ramp on either side of the right corner.
- Place bridges
Place one bridge over the hole between the two shallow ramps. Place the second bridge in the right corner.
- Place the arrows
Place one arrow in the front corner, pointing to the right corner. Place the second arrow in the right corner, pointing towards the top corner. Place the last arrow halfway between the right and top corners, pointing toward the hole.