Downloading DSCraft is generally legal as it is a transformative fan project that doesn't use Nintendo's proprietary code.
DSCraft is a fan-made "demake" of Minecraft designed specifically for the Nintendo DS hardware. It captures the essence of the game—mining, placing blocks, and exploring—within the technical limitations of the dual-screen system. Key Features
Basic implementation of health and resource gathering.
Always use a reputable ad-blocker when visiting ROM or homebrew hosting sites to avoid malicious pop-ups. Why Minecraft Never Hit the Original DS