Dead to Rights is a phrase said after nearly every video, be it a normal Retsupurae, a Wrongpurae, or a Retsufrash. It dates all the way back to Slowbeef's LP of said game. 

During the mini-game section of Dead to Right's prison level Diabetus shouts "DEAD TO RIGHTS", poking fun at its "gameplay", or lack thereof. From then on during the LP, they would occasionally say "Dead to Rights" during ridiculous sections of the game. Additionally, melodramatically saying the game's title would become a gag itself and be used in other game series during poorly executed gameplay sequences.