Risk Taker Achievement
Clear out the wheel in Wheel of Chance
In the Coaster Corner alley you will find the Wheel of Chance. This mini game is purely luck based and allows you to win tickets to spend in the shop. The down side is that it costs you 25 tickets to play the game and there are instant fail pitfalls on the wheel.
Initially on the wheel there is one instant fail skull, 7x1's, 4x5's, 3x10's, 2x20's and 1x100. Landing on one of these will reward you with that numbers total of tickets so for example landing on a 1 will net you 7 tickets, a 5 will net you 20 and so forth.
The downside however, is that whichever number you land on will subsequently be transformed into the instant-kill skull icon thus increasing your chance of losing if you choose to spin again. This achievement is pretty much luck based however there is an element of odd-calculating to it to work out whether or not it's worth spinning again or cashing in your total and starting again.
If you get the 100 on your first spin then there will only be 2 skulls on the wheel and still 16 numbers and therefore only a 2/18 chance of crapping out. If you then get the two 20's you'll have 4 skulls and 14 numbers therefor a 4/18 chance of crapping out. As you see with 3 sets left to clear you still have pretty high odds.
If you clear the ones first, you have 8 skulls and only 10 numbers left so an 8/18 chance of crapping out and still 4 sets left to clear.
Ultimately it is a game of luck however, you can still increase your chances slightly.. I think this is the one that will cause gamers the most stress on this game and leave a few on 800 for a long time!