Hey guys, my name is Shiro and i am pretty new to the game so i need your help ^^

My plan is to create a map in Indiana-Jones style.

What do i mean by that?

I want to create an epic cave adventure, with some traps in it...
obviously the most iconic one too :
The boulder escape.

Now here is my problem: When i choose for example the catapult bolder as the boulder which follows you, it is always way too slow...
I've put some ramps there but it is still relatively boring because the boulder is no real threat

I want to know, how can i boost it up, making it faster so it becomes an epic escape