Hey FrazzlePop, thanks for letting me know you were struggling in RCT3.

1st Issue:

Can't get Coasters underground;

I think you need all the Expansion Packs for the Coasters to go through Terrian and Underground.

2nd Issue:

Takes 10 mins to load a park;

Just depends how much memory you have on your pc or how big your park is on a slow computer.

3rd Issue:

Bad Glitches;

Same goes for the 2nd Issue, just depends how much memory is on your PC or how slow your pc is.

Hope this helps FrazzlePop.

Hey, this might be a fast reply, but I was just about to click on the Forum tab and I bet you posted it then

anyways' thanks for that, really appreciate your help!!!

Wrong forum for this. I've moved it for you.

FrazzlePop, just incase here are some more detailed answers:

1st Issue,
You only need Soaked Expansion Pack.

2nd Issue,
It depends on what you already got in your park...If it is a new one then it'll take 5 minutes, if you already have some creations in it the time will depend on how much memory it'll take and how much stuff is in your park. So that is probably why its taking 10 minutes.

3rd Issue
Memory and wrong compatible computers.

Wrong forum for this. I've moved it for you.

Thanks, I struggled to find which one it went in.

You struggled finding "Help and Support"?

You struggled finding "Help and Support"?

No, What forum it went in. I selected the first one instead of that one.