: Consistently choose to spend time with him and "Offer to help" when prompted.
The developer released a dedicated guide for hidden content because many players missed specific scenes due to incorrect choice orders. duality game walkthrough fixed
If you meant a different game, let me know if it's one of these: Duality (Roblox) : A horror/puzzle game involving two characters. Duality (NightmareWeaverz) : Consistently choose to spend time with him