Grim Reaper Lock-Up

From Glitches

From the game Castlevania for the NES.

The game often locks up on the level with the Grim Reaper. This is possibly a defect in the way the cartridges were made and not the game itself because there is no evidence of it occurring on a ROM.

Discovered by Crawl and 1000, taken with permission from Flying Omelette.