where the Vikings are get on top of hill and blow up rocks
Use the gunpowder from the Chinese periode.
In "Time Tangled Island," to get the gunpowder to work, you need to first find the necessary ingredients: sulfur, charcoal, and saltpeter. After collecting these items, combine them in the correct order to create the gunpowder. Once you have the gunpowder ready, you can use it to solve specific puzzles and progress through the game. Be sure to pay attention to hints throughout the island for guidance.
When you have the barrel of gunpowder from the Great Wall of China (1593 AD), you can just click on the rocks at the cave (831 AD) and they will be blasted away.(There is no USE on the gunpowder.)
There is a barrel of gunpowder at the Great Wall of China (1593 AD). You can use it to blast open the rock cave at the Vikings island in 831 AD. One you have the gunpowder, click the rocks to blast them open.
The gunpowder from the Great Wall of China (1593 AD) is used to blast open the cave at 831 AD, which is blocked by rocks. (see related question)
Use the time device to return to the Lab again and use the blimp to travel to other islands.
There is a barrel of gunpowder to the right side at the Great Wall of China (1593 AD). Use it to blast open the cave at 831 AD (Vikings island).
No TNT, but some gunpowder that will work. Go to the Great Wall of China (1593 AD) and get the barrel of gunpowder at the far right. You can use to to blast open the cave at 831 AD to recover the Golden Vase.
You use it at 0831 AD (the vikings). You go to the cave that is blocked with rocks and you click on the rocks. The gunpowder will pop up and explode the rocks.NO U SHIHEAD
When you return an item on Time Tangled Island, the time device shows "green" for that time (there may still be objects to come from there). When all times are green, travel to the Lab (12 o'clock. the present). Use the Future Machine to travel to the restored future and get you Island Medallion.
There is a barrel of gunpowder to the right at the Great Wall (1593 AD), to use at the rocked-in cave in 831 AD. (When you have it, you only have to click the rocks.)
Ancient Romans did not use gunpowder. Gunpowder was invented by China around the middle ages.