Hybrid VNs are allowed but the gameplay must be supplemental to the visual novel- it has to be a visual novel first and foremost. Some hybrid VN examples where people can move around and interact would be Ace Attorney or AI: The Somnium Files.
can the game be like: Flesh, Blood, & Concrete?
I played the first few minutes of Flesh, Blood & Concrete.
The style of interaction in the game is acceptable as a hybrid VN.