Opening a treasure chest in Konquest and having the game freeze is a **known bug** in Mortal Kombat: Deception (PS2/Xbox/GameCube). Caused by a race condition when spawning reward item while streaming next zone.
DVD2XboxSkip the chest. Konquest rewards are mostly koins/krypt unlocks — not progression-critical. You can 100% the mode without that specific chest. Use a FAQ to map all chests and avoid buggy ones.
Pro Tip: Play on GameCube via Swiss — fastest loads, least bugs, GBA link for MK: Deception extras.