4D Toys has released a Mega-Update that includes features that were frequently requested by players. A major challenge in adding new elements to the game is the custom interfaces required for the VR, mouse/keyboard, and touchscreen versions. However, the update includes rotating arbitrary 3D slices in 4D, projecting the 2D faces of 4D objects, structures that allow players to roll marbles around, and new scenes that feature torque and double rotation. Players can also explore the static Klein bottle and sphere, and follow the last touched shape in certain scenes. Miegakure is another complementary approach to explaining the fourth dimension.
https://marctenbosch.com/news/2023/03/4d-toys-update-v-1-8-rotating-the-3d-slice-2d-faces-projections-marble-scenes-and-many-more/