I should check if there's a known DC2 pack for Undertale. Maybe it's a version optimized for VK download. Since I can't browse the internet, I need to rely on my knowledge up to 2023. Undertale has many fan-made content packs. The DC2 pack might be an older or less mainstream one. The user probably wants an analysis of why this pack is considered better than others, maybe in terms of features, ease of use, or community reception.