Linnanmäki got its most intense ride in 2003, when the Huss Booster opened. It's a rough but fun flat spinning ride with many fast sommersaults trough the ride time. The multiple movement patterns of the gondolas make the flips different each time.

Kieppi was placed to a new area Linnanmäki had bought near the southern entrance gate. A kiddie-ride was also placed next to Kieppi and the HipHop was moved to that same area in 2004 to make room for Tulireki. Any new flat rides Linnanmäki may buy are likely going to be placed here as well.

Kieppi is Finnish for "The Flip".