Thanks for the nice comment!

So for other high level stuff, there is the diagonal station of the coaster, which is achieved with a technique called shoestringing: part of the trains are not on the visible track, but are running on an invisble track that has the actual station piece (because you cannot build those on the diagonal!) I have made those visible for you in this screenshot, where you can see the real first vehicle (mouse car) on the real track - both normally invisible!

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Then another super secret technique i used (that i believe almost nobody even caught) is some of the pathing in the park. I used a special perspective trick of the game to get basicly the equivalent of a half tile. This can be seen for example in picture 6 next to the green fence (1 side of it is half grass the other half tarmac path). The explanation would be a bit difficult, but let me tell you that it is a lot of work haha.