The loader returns here once it has checked its checksum and cleared itself. The stack goes near the top of SOURCE_AND_STACK; the loading tune plays until a key is pressed; IY is set to the variables, and interrupts turned off for the rest of the game; the object table and the templates are copied from where the tape has them to where the game reads them; a master copy of the object table, the variables and the knight's record is made at MASTER_OBJECTS, for each new game to start from; and the title page begins.

The game runs with interrupts off from here on (measured: the interrupt flip-flop stays clear in the simulator, and the ROM's frame counter in its system variables never moves). It has to: the sprites from SPRITE5B00 up lie over the ROM's system variables, which the ROM's interrupt routine writes to fifty times a second.