Ahhh so I'm one of the people who test played the web build on Discord and I'm blown away by how much you improved and changed after! The UI and art looks amazing and I really love all the icons and the design of everything. The tutorial is great - the only thing I didn't realize at first was I could pull the lever back even farther to use more force! Which was super cool.
I LOVED learning about coasters and all the little bits and pieces of info fed to me as I played.
Also, the poor little people being flung from the coaster when I messed up was kinda funny but also a bit tragic. I did think it was a bit odd to get 'Success' message on levels where you lost crash test dummies? Though I understand it would probably be impossible to keep everyone in probably given the nature of the game.
Overall, this is a very cool game and extremely fun to play! Really great work