Level 4

Percentage Markers
The 10% mark is on the red door.

The 20% mark is on the side of the path.

The 30% mark is right after the checkpoints. The 30% mark is in the start of the laptop part.

The 40% mark is on a wall on the second house.

The 50% mark is on a model after the checkpoint. It is closer to the path with the crystals.

The 60% mark is on a laptop.

The 70% mark is on a smoke cloud right after the checkpoint.

The 80% mark is on the side of the platform with the tanks.

The 90% mark is on the side of the path. To illustrate it there is also a light.

Difficulty
Difficulty is easy but it is harder when you go with the crystal at 50%.

Strategy
At 50%, move slowly if you are collecting the crystals.